Re: DeCSS, crypto, law, and economics

2003-01-10 Thread Eric Rescorla
"John S. Denker" <[EMAIL PROTECTED]> writes:

> Eric Rescorla quoted Slate:
> http://slate.msn.com/id/46376/
> >   Here's a stylized example: Suppose some people (call
> >   them the "prudes") cherish their freedom of religion, but not
> >   half so much as they would cherish a general ban on
> >   pornography. Others (call them the "lewds") cherish their
> >   right to read Lady Chatterley's Lover but not half so much as
> >   they would cherish a general ban on religion. Then if you
> >   outlawed both pornography and religion, you'd make everyone
> >   happier, while simultaneously making everyone less free.
> 
> Is that supposed to be a conundrum?  Is that
> supposed to cause headaches for economists
> or anybody else?
This did in fact cause headaches when Amartya Sen made this point.
The original paper is considered a classic of the economics
literature. It's in, for instance, Moser's "Rationality in
Action". 

-Ekr

-- 
[Eric Rescorla   [EMAIL PROTECTED]]
http://www.rtfm.com/

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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread William Allen Simpson
I thought I made a fairly clear and cogent original synopsis, but apparently we're 
heading off into religious wars. 

I'm going to invert Eric's argument:

Eric Rescorla wrote:
> William Allen Simpson <[EMAIL PROTECTED]> writes:
> > The question raised was whether the commodity would be produced.  The
> > producer knows that in the PAST there was sufficient income from these
> > consumers for the goods to be profitable.
> >
> Of course, but the producer uses things like past experience and
> marketing studies to decide what they expect. There may be errors,
> but that doesn't invalidate the basic analysis, which is that if
> the producer doesn't EXPECT to make a profit they won't produce
> a product.
> 
Look, I'm sure we are all in agreement on this point, with two caveats 
already expressed earlier:
 1) producers don't just want any profit, they want the biggest possible 
profit, and are less likely to produce something when there is 
something else even more profitable.
 2) we have examples where producers' desire for the biggest possible
profit stopped development of a product, the public sector stepped in, 
and the resulting product created wealth far beyond the dreams of the 
original -- the Internet, Harry Potter.

So, in the matter of DVDs, we all agree that the product _has_ been 
produced.  There are only artificial barriers in the market.


> > It is wrong, since it doesn't have any correspondence to the case at hand
> > (DVDs, cryptography).  In fact, it is directly contrary: (1) the producers
> > are not omniscient, and (2) the consumers have knowledge about pricing,
> > and (3) neither the producers nor the consumers act rationally.
> >
> > We can speculate forever about universes where we travel faster than the
> > speed of light, but really, I don't see why we should bother with using
> > such universes to model our current discussion.
> Maybe you live in some alternate universe where companies don't
> to practice price discrimination, but here on planet Earth,

The model (you proposed quoting Varian) required perfect knowledge of the 
producer, and complete lack of knowledge by the consumer.  That's not 
planet Earth.  The model doesn't work on planet Earth.

> companies routinely offer products at widely variable prices
> to different consumers.

Only when the consumers are unaware of the practice, and/or where the 
companies have raised a monopolistic legal barrier to *FORCE* the 
consumers to pay different prices.  

Note that some vendors are attempting to use the DMCA to prevent consumers 
learning about pricing differences, as reported Dec 2 on politechbot.com 
and 
 http://www.law.berkeley.edu/cenpro/samuelson/news/pressrelease.pdf


> > The points I was making here are (1) the terms used were wrong and (2)
> > there were no net benefits (wealth) to "society" from the monopoly.
> But that's wrong, because the monopoly allows market segmentation,
> which allows new products to be introduced that otherwise would
> not be.
> 
There has been no conclusive evidence presented here.  The Varian 
arguments presented are fallacious.  And other legal opinion presented 
here concluded otherwise.

Name us a DVD title that would not have been introduced without market 
segmentation, because it would have been unprofitable!?!?

Or is this just a religious belief?

Further deponent sayeth not.
-- 
William Allen Simpson
Key fingerprint =  17 40 5E 67 15 6F 31 26  DD 0D B9 9B 6A 15 2C 32


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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread Eric Rescorla
William Allen Simpson <[EMAIL PROTECTED]> writes:
> I thought I made a fairly clear and cogent original synopsis,
Clear, cogent, and wrong.

> Eric Rescorla wrote:
> So, in the matter of DVDs, we all agree that the product _has_ been 
> produced.  There are only artificial barriers in the market.
No. Each individual DVD is a new product as far as this model goes.

> > Maybe you live in some alternate universe where companies don't
> > to practice price discrimination, but here on planet Earth,
> 
> The model (you proposed quoting Varian) required perfect knowledge of the 
> producer, and complete lack of knowledge by the consumer.  That's not 
> planet Earth.  The model doesn't work on planet Earth.
Actually, it works just fine. Varian gave a number of examples in
his paper and I gave several (that you elided) in my response to you.

> > companies routinely offer products at widely variable prices
> > to different consumers.
> 
> Only when the consumers are unaware of the practice, and/or where the 
> companies have raised a monopolistic legal barrier to *FORCE* the 
> consumers to pay different prices.  
I'm afraid that's not the case. Restaurants, for instance, quite
frequently offer senior citizens discounts. They are widely
advertised. They also offer early bird specials, also widely
advertised. Bars offer lady's nights. Manufacturers offer "versioned"
products. All of these are classic examples of market segmentation and
they're not secret. Quite the contrary.

-Ekr

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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread Eric Rescorla
"John S. Denker" <[EMAIL PROTECTED]> writes:
> Eric Rescorla wrote:
> 
> > When there is a conflict between liberty and Pareto
> 
>  > dominance, economists get a headache.
> 
> Really?  Maybe some of them do, but I suspect most of
> them wouldn't formulate it as a conflict at all;  they
> would just ask "how much do you want to pay for your
> liberty?"
I was thinking in particular of Sen's "Impossibility of
the Paretian liberal". 

> Example:  Suppose you have the choice of either carpooling
> to work or taking your own car, solo.  The latter gives
> you more liberty as to when you drive home.  But it comes
> at a cost.
That's not the context in which I mean liberty. Rather, I'm
talking about global restrictions. Consider the following
situation as described by Steven Landsburg
(http://slate.msn.com/id/46376/)

Here's a stylized example: Suppose some people (call
them the "prudes") cherish their freedom of religion, but not
half so much as they would cherish a general ban on
pornography. Others (call them the "lewds") cherish their
right to read Lady Chatterley's Lover but not half so much as
they would cherish a general ban on religion. Then if you
outlawed both pornography and religion, you'd make everyone
happier, while simultaneously making everyone less free.

-Ekr


-- 
[Eric Rescorla   [EMAIL PROTECTED]]
http://www.rtfm.com/

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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread John S. Denker
John Gilmore wrote in part:

> firmware refuses to write in the key area of the disk, and the blank
> disks are shipped with the key area obliterated.  (And, DVD readers
> will only let you read out the keys from a disk after you've reverse
> engineered some simple bits that the industry wouldn't reveal.)  So
> you can't do any bit-for-bit copying of DVDs unless you have a very
> expensive (and restrictively licensed) DVD mastering press.

That's an interesting bit of technology, but it
cannot be considered a cryptographically-strong
anti-piracy scheme.  Any (unPalladiated) software
player could be patched to remap the "key area" to
another part of the disk (with an insignificant
loss of total disk capacity).

As a general principle, it's hard to talk about
security unless you are clear about what the security
boundary is.  As applied to DVDs, this means they
didn't have a chance of being secure unless all the
security-related processing steps were performed
inside tamper-resistant hardware.

Also note that if your goal is to make pirate disks
that play on living-room-grade players, it is not
even sufficient to have DeCSS||remapping, because of
low-level hardware incompatibilities.  You cannot
play a home-made unencrypted disk in many living-room
grade players.

To summarize, the necessary condition for piracy is
something like
   (DeCES||remapping) && low_level_compatibility

The compatibility matrix for unencrypted disks is
something like:
 living-room   computer
   player  RW drive
 ---
  commercially-pressed disksyes yes

  home-made DVD+R or DVD+RW   often no  yes


> bit-copying ability   No other major computer
> storage technology has lacked it

It depends on what you mean by "major" and "computer".
The video-game industry is huge.  Since its earliest
days it has distributed many games on cartridges for
which most consumers lack bit-for-bit copy capability.

Not-easily-copyable media do not actually cause the
earth to fall out of its orbit.  Some people may
object to them on political or philosophical grounds,
but that's another matter.

I wrote in part:

>> We should try to avoid overwrought arguments about the
>> "morality" of market segmentation and/or arbitrage.


Unfortunately you set the wrong tone by starting as apologist for it.


What's wrong with my "tone"?  I was trying to
set a tone of moderation.  That will seem "wrong"
to extremists on both sides, but complaining
about the tone won't change the facts.

I'm not even sure what "it" refers to (segmentation
and/or arbitrage) but since I'm not an apologist
for either I can reject this accusation without
needing to fully parse it.

Sometimes I'm a buyer.  Sometimes I'm a seller.  I
see no reason to be an apologist for either extreme.
IMHO extremists do everyone a disservice.


In fact it is easy to demonstrate that _some_ market
segmentation is good for society as a whole.


How does this make me an "apologist"?  It looks
to me like an inalterable objective fact.


The kind of segmentation your graphs rely on can easily be created
by *time* segmentation.  

Yes.  And by other means as well, such as (gasp!)
genuine product differentiation.

And I agree with all who have noted that it is
highly ironic that while one part of the US
government is busily negotiating free-trade zones,
to remove geography-based barriers to trade, other
parts of the government are enacting and enforcing
new laws (!criminal! laws) that the studios exploit
to erect novel geography-based barriers.

==


The "created wealth" is given by the length of the
magenta line, the difference between the customer-value
curve and the producer-cost curve.


Wayne Allen Simpson wrote:

This starts the thread, and the labels (and concepts) are wrong.  

The concepts are correct.
Various labels are used by various authors; there is
no standardization.

The purpose of terminology is to facilitate communication.
Given no terminology of any kind (standard or otherwise)
that was a_priori well-known to the readership, I have
tried to be clear about what I mean by the terms I use.
I believe anybody who wants to understand will be able
to understand.  (Those who want to not understand will
always find a way to not understand;  there's nothing
I can do about that.)

>>  http://www.monmouth.com/~jsd/econ/val-cost.gif


Note that in the absence of market segmentation,
the society as a whole is worse off.  ...  If the
buyers insist on buying every unit at the lowest
possible price, society loses.


Not so!  As long as the price is greater than the cost (far far left of 
your tick mark), there is no reason that the goods cannot be produced 
FOREVER.  Society benefits FOREVER.  

Whether the goods can be produced forever is irrelevant,
because the _demand_ is saturated at the point in question
(left of the point of max created wealth, in the absence
o

Re: DeCSS, crypto, law, and economics

2003-01-10 Thread Eric Rescorla
William Allen Simpson <[EMAIL PROTECTED]> writes:

> Eric Rescorla wrote:
> > 
> > William Allen Simpson <[EMAIL PROTECTED]> writes:
> > > Therefore, your graphs say to me: market segmentation is indicative of
> > Of course. But the point that you seem to be missing is that there are
> > situations where a monopoly can Pareto-dominate non-monopoly situations.
> > 
> The points I was making here are (1) the terms used were wrong and (2) 
> there were no net benefits (wealth) to "society" from the monopoly.
But that's wrong, because the monopoly allows market segmentation,
which allows new products to be introduced that otherwise would
not be.

> > > The problem with this example, as is often the case with economists, is
> > > it assumes perfect knowledge and rational behaviour.
> > Of course. Because it's far harder to explain the principle without
> > perfect information. That doesn't make it wrong, however.
> > 
> It is wrong, since it doesn't have any correspondence to the case at hand 
> (DVDs, cryptography).  In fact, it is directly contrary: (1) the producers 
> are not omniscient, and (2) the consumers have knowledge about pricing, 
> and (3) neither the producers nor the consumers act rationally.
>
> We can speculate forever about universes where we travel faster than the 
> speed of light, but really, I don't see why we should bother with using 
> such universes to model our current discussion. 
Maybe you live in some alternate universe where companies don't
to practice price discrimination, but here on planet Earth,
companies routinely offer products at widely variable prices
to different consumers.

> > Without the ability to get one consumer to pay
> > more than another, we're back to the situation that we had before,
> > namely that it's unprofitable to produce the commodity. Most consumer
> > goods are not sold at auction and thus more subtle forms of price
> > discrimination are required.
> > 
> What you mean is FORCE the consumers to pay more than one another,
> when everyone knows it a priori to be irrational. 
I'm not sure what you mean is irrational.

(1) It's not irrational to pay a different price from other people.
On the contrary, if the price isn't available to you for some
reason, it's absolutely rational.
(2) As stated many times, it IS rational to force people to pay
different prices. I advise you to go back and read Varian's
papers. Moreover, it's done all the time with things like
educational discounts, senior citizens discounts, etc.

> The question raised was whether the commodity would be produced.  The 
> producer knows that in the PAST there was sufficient income from these 
> consumers for the goods to be profitable. 
>
> The producer is not pre-cognitive.  In the case at hand, producers know 
> that some movies/theatricals simply never make a profit, no matter how 
> wonderful.  That's risk.
Of course, but the producer uses things like past experience and
marketing studies to decide what they expect. There may be errors,
but that doesn't invalidate the basic analysis, which is that if
the producer doesn't EXPECT to make a profit they won't produce
a product.

-Ekr

-- 
[Eric Rescorla   [EMAIL PROTECTED]]
http://www.rtfm.com/

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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread Eric Rescorla
Bill Stewart <[EMAIL PROTECTED]> writes:
> It's fairly well-known that far more people died from
> regulation-caused delays in deployment of several heart-attack drugs
> than from active damage by failures such as misuse of thalidomide,
> though some people still believe that we're better off because
> the regulators also prevented wide deployment of
> SideEffectOMycin and DidntWorkATol.
Regulation is a qualitatively different kind of barrier from
patents. I agree that it's rather more difficult to argue that
FDA-style regulation has increased welfare. That's an 
empirical question that hasn't been determined.

However, it's certainly the case that case that expensive drugs are
better (Pareto dominant) than no drugs at all, which I claim is gthe
outcome of removing patents.

> But back to the DVD issue - it's not an issue of public safety;
> this stuff is just television.
Sure, but that doesn't make the economics much different.

-Ekr

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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread R. Hirschfeld
> From: "Perry E. Metzger" <[EMAIL PROTECTED]>
> Date: 09 Jan 2003 16:03:00 -0500
> 
> Matt Blaze <[EMAIL PROTECTED]> writes:
> > By the way, import region-free DVD players *are* available, quite
> > legally, within the US, as are non-region 1 disks.  Kim's video in NYC
> > is one source.  They are all unfamiliar off brands, however - you won't
> > find Sony or Matsushita (deliberately) producing one.
> 
> Actually, that's not true. Kim's sells grey market units typically
> made without licenses to the DVD patent portfolio in places like
> China, and units that are more legal but that have been cracked. The
> latter are supplied with instruction sheets describing how to disable
> region coding. Some of these sheets actually say things like "we can't
> be responsible for the effects, but if you were to push the following
> buttons in the following sequence..."
> 
> I am unaware of legal region-free players being generally available in
> the US, although I may be wrong on this.

How "illegal" are these grey market units?  For unlicensed units made
legally in jurisdictions not subject to the patents, is the illegality
in the importing and/or selling?  Are modified ("cracked") players
necessarily illegal?

It's legal to own several DVD players of differing regions so it seems
odd that it would be illegal to have them in a single package sharing
common components (everything but a byte of firmware).  Manufacturers
are presumably prevented from doing this by the terms of their license
agreements (and some, like Sony, have vested interests).

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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread William Allen Simpson
Eric Rescorla wrote:
> 
> William Allen Simpson <[EMAIL PROTECTED]> writes:
> > Therefore, your graphs say to me: market segmentation is indicative of
> Of course. But the point that you seem to be missing is that there are
> situations where a monopoly can Pareto-dominate non-monopoly situations.
> 
The points I was making here are (1) the terms used were wrong and (2) 
there were no net benefits (wealth) to "society" from the monopoly.


> > The problem with this example, as is often the case with economists, is
> > it assumes perfect knowledge and rational behaviour.
> Of course. Because it's far harder to explain the principle without
> perfect information. That doesn't make it wrong, however.
> 
It is wrong, since it doesn't have any correspondence to the case at hand 
(DVDs, cryptography).  In fact, it is directly contrary: (1) the producers 
are not omniscient, and (2) the consumers have knowledge about pricing, 
and (3) neither the producers nor the consumers act rationally.

We can speculate forever about universes where we travel faster than the 
speed of light, but really, I don't see why we should bother with using 
such universes to model our current discussion. 


> You're implicitly assuming some method of price discrimination (in
> this case auctions). 

I'm explicitly stating that the consumers have concurrent knowledge 
about pricing.  The consumers may decide that their values are different.  
(That may not be rational.) 


> Without the ability to get one consumer to pay
> more than another, we're back to the situation that we had before,
> namely that it's unprofitable to produce the commodity. Most consumer
> goods are not sold at auction and thus more subtle forms of price
> discrimination are required.
> 
What you mean is FORCE the consumers to pay more than one another, even 
when everyone knows it a priori to be irrational. 

The question raised was whether the commodity would be produced.  The 
producer knows that in the PAST there was sufficient income from these 
consumers for the goods to be profitable. 

The producer is not pre-cognitive.  In the case at hand, producers know 
that some movies/theatricals simply never make a profit, no matter how 
wonderful.  That's risk.


> Incidentally, it's not clear that an auction will produce the effect
> you suggest. It's not necessarily your best strategy to bid up to
> your true value on the first of a series of identical items.
> 
Certainly.  For example, each consumer could decide not to bid unless 
the commodity is a "bargain" -- a behaviour frequently seen in real life 
at flea markets or garage sales.  In that case, the producer will not 
make his nut.  So?  Absent FORCE, there's never a guarantee of profit. 

-- 
William Allen Simpson
Key fingerprint =  17 40 5E 67 15 6F 31 26  DD 0D B9 9B 6A 15 2C 32

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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread R. Hirschfeld
> Date: Thu, 09 Jan 2003 10:18:33 +
> From: Pete Chown <[EMAIL PROTECTED]>

> Alan wrote:
> 
> > Another argument for the regions is the differing formats for TV
> > signals. (NTSC v.s. PAL.)  It is a bogus argument as you can find DVD
> > players that will convert the signal with little or no problem.
> 
> Actually my TV is happy with either.  I always had the notion that I 
> wouldn't be able to play American videotapes, but then I tried it and it 
> works fine.  So if I don't want to bother with region codes, the other 
> possibility is to buy films on video.

This may be due to not only your TV but also your VCR.  Some have
"NTSC PLAYBACK ON PAL TV" (PAL60), which uses PAL color encoding but
NTSC scanning rate, which most PAL TVs can handle.

> When I play region-1 DVDs, the player doesn't convert the signal.  This 
> would introduce a slight judder because of the differing frame rates. 
> Instead the TV just acts like a multisync monitor, and adjusts to the 
> signal it is given.

The output of your player from a region 1 DVD is probably not NTSC but
rather PAL60.  A disc may be labeled NTSC (or PAL) if it is formatted
for a scanning rate of 525/60 (resp. 625/50), but this is a bit of a
misnomer because the encoding of the color signal is determined by the
player and is not inherent to the disc.

Ray

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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread Bill Stewart
At 08:45 AM 01/08/2003 -0800, Eric Rescorla wrote:

Maybe. Not necessarily if that meant that no new movies ever got
made. Now, the UK isn't a big enough market for this, but consider
what would happen if the US said "listen, free drugs would be great
for consumers so let's get rid of all drug patents". This would
probably dramatically increase social welfare at the moment, since
there are quite a few people who would buy drugs if they were
cheaper. (It's of course not Pareto dominant). However, it seems
likely that this would have such a negative effect on future
production that it would lower social welfare in the future.


In the case of medicinal drugs (as opposed to recreational),
the legal barriers to development and sale of new drugs
have raised the cost to about $500-800 million,
as well as adding a significant delay to availability dates,
and there are fairly convincing arguments that those have
at least as large a negative effect.  It certainly focuses
drug development in directions that can sustain big-hit
marketing campaigns, plus a small amount that's covered by
orphan-disease-drug loopholes.

It's fairly well-known that far more people died from
regulation-caused delays in deployment of several heart-attack drugs
than from active damage by failures such as misuse of thalidomide,
though some people still believe that we're better off because
the regulators also prevented wide deployment of
SideEffectOMycin and DidntWorkATol.

But back to the DVD issue - it's not an issue of public safety;
this stuff is just television.  While I'm not particularly convinced that
copyright and patent legislation actually accomplishes the goals of
advancing science and the arts, or that the time periods that those
protections give exactly count as "limited", it's certainly important
to have "Fair Use" protections for what the public can do with the
information.  On the other hand, legislating against DRM because
it prevents the public from exercising fair use seems wrong
(especially because I prefer technical means of protection for
that kind of material than legal protections),
though legislation that bans public attempts to work around DRM
also seems wrong as well, and failing to ban it just means that
people who want to build DRM systems will just have to do a better job of it.


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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread Eric Rescorla
William Allen Simpson <[EMAIL PROTECTED]> writes:
[..] 
> Therefore, your graphs say to me: market segmentation is indicative of 
Of course. But the point that you seem to be missing is that there are
situations where a monopoly can Pareto-dominate non-monopoly situations.

> Eric Rescorla wrote:
> > The interesting thing about market segmentation (as Mr. Denker pointed
> > out) is that it's often good for everyone, particularly in cases
> > where marginal costs of production are low.
> >... 
> > However, if he can price discriminate, he can sell two copies,
> > one at 3 and one at 6. This makes it profitable for him to
> > produce the book.
> > 
> The problem with this example, as is often the case with economists, is 
> it assumes perfect knowledge and rational behaviour. 
Of course. Because it's far harder to explain the principle without
perfect information. That doesn't make it wrong, however.

> All the rest of the rationale is hogwash.  Instead, at auction, the low 
> cost consumer will quit at $4 on the 1st book (the other purchaser will 
> have a bargain believing the book to be worth $6), and then purchase the 
> 2nd at $3.  Wealth will be maximized (and profit will be minimized).
You're implicitly assuming some method of price discrimination (in
this case auctions). Without the ability to get one consumer to pay
more than another, we're back to the situation that we had before,
namely that it's unprofitable to produce the commodity. Most consumer
goods are not sold at auction and thus more subtle forms of price
discrimination are required.

Incidentally, it's not clear that an auction will produce the effect
you suggest. It's not necessarily your best strategy to bid up to
your true value on the first of a series of identical items.

-Ekr

-- 
[Eric Rescorla   [EMAIL PROTECTED]]
http://www.rtfm.com/

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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread Adam Back
I hear that as new-zealand made it illegal to sell region restricted
DVD players there (as John mentioned in his mail), that units (any
brand) bought for the .nz market are all region players.  Shouldn't be
hard to get one mail order of your choice.  (Or so a .nz person told
me -- he's on the list).

Adam

On Thu, Jan 09, 2003 at 04:03:00PM -0500, Perry E. Metzger wrote:
> Actually, that's not true. Kim's sells grey market units typically
> made without licenses to the DVD patent portfolio in places like
> China, and units that are more legal but that have been cracked. The
> latter are supplied with instruction sheets describing how to disable
> region coding. Some of these sheets actually say things like "we can't
> be responsible for the effects, but if you were to push the following
> buttons in the following sequence..."
> 
> I am unaware of legal region-free players being generally available in
> the US, although I may be wrong on this.

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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread William Allen Simpson
I've been composing this reply for days, and the thread just keeps 
getting longer, so I'll try to keep the response concise, and consolidate 
in a single message.

Before it gets lost in the shuffle, I do want to thank John Gilmore for 
actual technical crypto information!  I had no idea that they were 
selling DVD blanks with the key areas unusable.  That has a profound 
effect on the whole debate, as it limits producer competition. 


"John S. Denker" wrote:
> The "created wealth" is given by the length of the
> magenta line, the difference between the customer-value
> curve and the producer-cost curve.
> 
This starts the thread, and the labels (and concepts) are wrong.  

It's been a long time since college, but even I can look up Adam Smith, 
chapter VII.

The "wealth" created is only that based on the original new things, 
and valued at the "natural" price.  Your graph shows a TRANSFER of wealth
(meaning monopoly profits), as the consumer price rises.  

Stradivarius violins are thousands of times more expensive than they 
were a mere decade ago -- because of scarcity and extremely rare sales, 
not an increase in overall wealth they bring to society. 

> Note that in the absence of market segmentation,
> the society as a whole is worse off.  ...  If the
> buyers insist on buying every unit at the lowest
> possible price, society loses.
> 
Not so!  As long as the price is greater than the cost (far far left of 
your tick mark), there is no reason that the goods cannot be produced 
FOREVER.  Society benefits FOREVER.  What you have indicated is where 
the *seller* maximizes gains, not where society maximizes gains.  That is the optimum 
profits, not the optimum wealth.  

Rather, the optimum wealth will be created by the lowest possible price, 
as more consumers will be able to afford the commodity and more of the 
commodity will be produced!

(Remember Henry Ford paying his workers enough to actually buy the cars 
they built, a novel concept at the time, setting off a transportation 
revolution.)

Therefore, your graphs say to me: market segmentation is indicative of 
monopoly rents. 


Eric Rescorla wrote:
> The interesting thing about market segmentation (as Mr. Denker pointed
> out) is that it's often good for everyone, particularly in cases
> where marginal costs of production are low.
>... 
> However, if he can price discriminate, he can sell two copies,
> one at 3 and one at 6. This makes it profitable for him to
> produce the book.
> 
The problem with this example, as is often the case with economists, is 
it assumes perfect knowledge and rational behaviour. 

In real life, all the publisher knows at the time of decision is that in 
the PAST, there have been similar books that have sold for $6 and $3, and 
that there are at least 2 purchasers.  Therefore, the $7 costs of 
printing will be covered, and the book will be produced.  

All the rest of the rationale is hogwash.  Instead, at auction, the low 
cost consumer will quit at $4 on the 1st book (the other purchaser will 
have a bargain believing the book to be worth $6), and then purchase the 
2nd at $3.  Wealth will be maximized (and profit will be minimized).


Ian Brown wrote:
>  But I would like to think that the popular skepticism towards
> price discrimination also reflects something much more rational. 
>...
> what is good for the company will also be good for the nation, 
>...
> http://law.vanderbilt.edu/lawreview/vol536/boyle.pdf
> 
Ah yes, the old "What is good for General Motors is good for the Country" 
argument.  Thanks for bringing this paper to our attention.


"Karsten M. Self" wrote:
> What's distinctive about the last several years of RIAA[1] and MPAA
> actions is that these industries are seekin legal sanction to enforce
> price discrimination.  The basis for this legal sanction isn't
> production-side differences, but an attempt to manage the demand-side
> differntials which exist.
> 
As my (former) congresscritter says, "Using the DMCA, they want to control 
the room you're in, the chair you sit in, and the lamp you use."


> If an economist can be a rock star, Varian is one of 'em. 

Ahem, I beg to differ.  I haven't forgotten the foolish papers he wrote 
on Internet pricing, (bringing us back to our topic) cryptographically 
signing every packet, and carrying an additional micro-payment payload, 
so that they could "bid" at every router. 

As I pointed out at the time, the functional equivalent of every little 
passenger vehicle dragging along a train of boxcars, just to pay tolls. 
Thoroughly impractical. 

BTW, while researching his articles on the topic, I discovered that he'd 
been peddling the same papers to multiple journals (slightly modified)  
and padding his C.V.  Not intellectually honest, either.


Phil Karn wrote:
> Much movie piracy is driven by the strange practice of releasing new
> movies in different countries at different times. This is a major form
> of geographic market 

Re: DeCSS, crypto, law, and economics

2003-01-10 Thread Dima Holodov
On Thursday 09 January 2003 01:03 pm, Perry E. Metzger wrote:
>
> I am unaware of legal region-free players being generally available in
> the US, although I may be wrong on this.

They are available at any "Best Buy" or "Fry's Electronics".  They
just can't advertise it on the boxes.  See the following sites:

 http://www.vcdhelp.com/dvdhacks
 http://www.regionfreedvd.net/players.html
 http://www.nerd-out.com/forum/

My friend recently purchased the CyberHome 402 from Best Buy.
It was $50 after $20 mail in rebate.  I think he had to hit some
5 or 6 keys on the remote control, and after that it's completely
region free.  Someone earlier said that region free players are
not popular in the US.  This is just not true.  They are
extremely popular with immigrants in the US.

Another myth here:  Almost all pirate DVDs (at least sold in
Russia) are region free.  The region encoding hurts you, only
when you pay more money for the licensed disks.  Apparently
professional DVD presses are not that hard to get your hands
on, and pirates are not stupid.

- Dima



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Re: DeCSS, crypto, law, and economics

2003-01-10 Thread Karsten M. Self
on Wed, Jan 08, 2003 at 08:17:41AM -0800, Eric Rescorla ([EMAIL PROTECTED]) wrote:
> "Karsten M. Self" <[EMAIL PROTECTED]> writes:
> > on Tue, Jan 07, 2003 at 04:10:27PM -0800, Eric Rescorla ([EMAIL PROTECTED]) wrote:
> > > However, if he can price discriminate, he can sell two copies,
> > > one at 3 and one at 6. This makes it profitable for him to
> > > produce the book.
> > 
> > ...and the usual mechanism is to produce various versions of the book:
> > 
> >   - A premium hardcover.
> >   - A "trade paperback".
> >   - A pulp paperback.
> >   - A premeium, leather-bound, acid-free archival quality, hand-signed,
> > and specially illustrated, collectors edition.

> Well, that's certainly one option. However, there are certainly
> other examples, such as senior citizens discounts. 

Or matinees.  Or generic branding.  Or outlet stores.  Or rush-delivery
premiums.  Or personal shoppers.

The point being that traditional price discrimination mechanimsms _work
by appealing to preference differentials among buyers, not by
arbitrarially, and with force of law, *imposing* such differentials_.

> I think part of the point here is that legal measures to enforce price
> discrimination might well be Pareto-dominant in some cases. When
> there is a conflict between liberty and Pareto dominance, economists
> get a headache. [1]

"Pareto-dominant" isn't a term I'm familiar with (though Google returns
some hits).  Pareto efficient or optimal is:

the "best that could be achieved without disadvantaging at least one
group." (Allan Schick, in Louis C. Gawthrop, l970, p.32)

http://pespmc1.vub.ac.be/ASC/PARETO_OPTIM.html

...and I can think of any number of reasons why legally mandated
discrimination is *not* Pareto optimal ipso facto, starting with the
fact that it violates several assumptions of the free market model.  The
classic test given by Varian is:

[S]uppose that [a given allocation] were not [optimal].  Then there
would be some other feasible allocation that gave everyone at lesat
as large a utility, and someone strictly greater utility.  But the
welfare function is an increasing function of each agent's utiluty.
Thus the new allocation would hav eto have higher welfare, which
contradicts the assumption that we originally had a welfare maximum.

Hal R. Varian, _Intermediate Microeconomics_, WH Norton & company,
1987. pp 534-535.

Since CSS, ipso facto, prevents certain allocations, it is not Pareto
efficient.

Peace.

-- 
Karsten M. Self <[EMAIL PROTECTED]>http://kmself.home.netcom.com/
 What Part of "Gestalt" don't you understand?
   A guide to GNU/Linux partitioning:
 http://kmself.home.netcom.com/Linux/FAQs/partition.html

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Re: DeCSS, crypto, law, and economics

2003-01-09 Thread Perry E. Metzger

Matt Blaze <[EMAIL PROTECTED]> writes:
> By the way, import region-free DVD players *are* available, quite
> legally, within the US, as are non-region 1 disks.  Kim's video in NYC
> is one source.  They are all unfamiliar off brands, however - you won't
> find Sony or Matsushita (deliberately) producing one.

Actually, that's not true. Kim's sells grey market units typically
made without licenses to the DVD patent portfolio in places like
China, and units that are more legal but that have been cracked. The
latter are supplied with instruction sheets describing how to disable
region coding. Some of these sheets actually say things like "we can't
be responsible for the effects, but if you were to push the following
buttons in the following sequence..."

I am unaware of legal region-free players being generally available in
the US, although I may be wrong on this.

-- 
Perry E. Metzger[EMAIL PROTECTED]

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Re: DeCSS, crypto, law, and economics

2003-01-09 Thread Michael Shields
In article <[EMAIL PROTECTED]>,
Phil Karn <[EMAIL PROTECTED]> wrote:
> Exactly. Time segmentation already practiced by the movie studios and
> book publishers, and it's pretty hard to arbitrage -- until somebody
> invents time travel.

For books and CDs -- and as the region coding system breaks down,
increasingly for DVDs as well -- only shipping costs and market
illiquidity protect the segmentation.  And markets are becoming more
liquid, even at the consumer level.  For example, I routinely order
the European editions of books from amazon.co.uk, for example, instead
of waiting for them to be published in the US.  This is exactly as
easy as buying from amazon.com; they even accept the same login.
-- 
Shields.


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Re: DeCSS, crypto, law, and economics

2003-01-09 Thread David Turner
On Thu, 2003-01-09 at 10:17, Birger Toedtmann wrote:
> David Turner schrieb am Wed, Jan 08, 2003 at 01:29:39PM -0500:
> > On Wed, 2003-01-08 at 05:50, Pete Chown wrote:
> > 
> > > With DVDs we have a complex situation.  Supposedly studios can make more 
> > > per film, so they can afford to make more marginal films. 
> > 
> > To make films which will not make money is not an economically rational
> > action even if one is making other films which do make money. This is
> > the point the 17 economists made in their Eldred amicus.  
> 
> It depends.  In not-so-simple-scenarios, one may use it on behalf of
> PR (attracting people to one's product portfolio) or bind a promising
> new director who will later create a big profit-making film.  Studios
> and publishers use the latter quite frequently I guess.

This is true (and I did mean to add a disclaimer to this effect, but
couldn't find a good sentence structure which made it look
non-awkward).  However, attracting customers and developers needs to be
done whether a studio is making tons and tons or just lots of money on
its directly-profitable films.  That is, making more money on a
high-profit film doesn't encourage a studio to make more low-profit
films in order to attract directors, since they have a need to attract
directors anyway (in order to make *any* films).  The demand for
directors won't decrease with a modest decrease in profit for directly
profit-producing films, since movie studios' needs for directors depends
mainly on how many films they produce, a number which is limited mainly
by consumer demand.  Of course, consumer demand does depend on the
quality of the available movies, which depends (among many other
factors) on directors. 

So, assuming my analysis isn't completely off the wall, market
segmentation doesn't produce more "marginal" films.  On the other hand,
I don't think that the 17 economists are dispositive on this issue, now
that I've given it more thought.



>   From an economic point of view, excessive copying could result into
>   a situation where music/films become common goods because no one
>   is able to prevent others from using it.  Exit Labels/Studios/Publish-
>   ers.

The issue in this branch of the thread (to mix a metaphor) is not CSS as
copy prevention (at which it does an abysmal job), but CSS as market
segmentation (at which it does a somewhat better job). 

Disclaimer: I'm still not an economist.

-- 
-Dave Turner Stalk Me: 617 441 0668

"On matters of style, swim with the current, on matters 
of principle, stand like a rock." -Thomas Jefferson


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Re: DeCSS, crypto, law, and economics

2003-01-09 Thread Birger Toedtmann
David Turner schrieb am Wed, Jan 08, 2003 at 01:29:39PM -0500:
> On Wed, 2003-01-08 at 05:50, Pete Chown wrote:
> 
> > With DVDs we have a complex situation.  Supposedly studios can make more 
> > per film, so they can afford to make more marginal films. 
> 
> To make films which will not make money is not an economically rational
> action even if one is making other films which do make money. This is
> the point the 17 economists made in their Eldred amicus.  

It depends.  In not-so-simple-scenarios, one may use it on behalf of
PR (attracting people to one's product portfolio) or bind a promising
new director who will later create a big profit-making film.  Studios
and publishers use the latter quite frequently I guess.

If a product is definitely beyond any profit, it won't get produced
by market forces, thus resulting in a pure common good.  Society may
then agree upon whether it wants that good to be produced anyway,
paying it with taxes, presumably.  You can see this with theatre,
arts, opera etc.  This is "economically rational" as well but works
outside markets only.  Don't mix rationality and market forces.


[ The same applies to goods where a producer is not able to discriminate
  usage.  If he cannot prevent some people (e.g. those who have not
  paid) to use his product, nobody would pay for it, everyone would
  freeride.  A common example is the ordinary lamp post:  How can I 
  prevent someone using its light?  As a consequence, market forces
  won't provide the public with street light, so it (the public) had
  to agree to pay taxes such that the community could set up the lamps.

  From an economic point of view, excessive copying could result into
  a situation where music/films become common goods because no one
  is able to prevent others from using it.  Exit Labels/Studios/Publish-
  ers.
 
  (Just to summarize the very obvious, excuses.) ]


Regards,

Birger Tödtmann



msg03314/pgp0.pgp
Description: PGP signature


Re: DeCSS, crypto, law, and economics

2003-01-09 Thread Pete Chown
Alan wrote:


Another argument for the regions is the differing formats for TV
signals. (NTSC v.s. PAL.)  It is a bogus argument as you can find DVD
players that will convert the signal with little or no problem.


Actually my TV is happy with either.  I always had the notion that I 
wouldn't be able to play American videotapes, but then I tried it and it 
works fine.  So if I don't want to bother with region codes, the other 
possibility is to buy films on video.

When I play region-1 DVDs, the player doesn't convert the signal.  This 
would introduce a slight judder because of the differing frame rates. 
Instead the TV just acts like a multisync monitor, and adjusts to the 
signal it is given.

(My TV is a middle of the road model, not the cheapest but nowhere near 
the most expensive either.)

--
Pete


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Re: DeCSS, crypto, law, and economics

2003-01-09 Thread Pete Chown
Matt Blaze wrote:


Huh?  DVD region coding doesn't prevent this at all; ripped decrypted
DVD mpeg files could be played anywhere.


I think that DRM mechanisms may increase piracy.  A few years ago you 
could buy a CD, knowing that it was a standard product which you could 
use in certain ways.  Now, you might get it home and find that you can 
play it in your hi-fi, but not in your car.  Next time, you're not going 
to make that mistake, you'll just log on to Kazaa and download an MP3.

--
Pete


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Re: DeCSS, crypto, law, and economics

2003-01-09 Thread Phil Karn
John Gilmore wrote:


The kind of segmentation your graphs rely on can easily be created
by *time* segmentation.  Producers start off charging high prices for
their goods, and then gradually reduce the prices as they ramp up
volumes, pay off their startup costs, learn the desires of their market
better, etc.  This gets the social benefit you desire, without propping
up any artificial forms of segmentation.


Exactly. Time segmentation already practiced by the movie studios and 
book publishers, and it's pretty hard to arbitrage -- until somebody 
invents time travel.

Much movie piracy is driven by the strange practice of releasing new 
movies in different countries at different times. This is a major form 
of geographic market segmentation. If "Two Towers" had been released 
world-wide on the same day instead of only in the US and a few other 
countries, then there would have been little motivation for anxious fans 
around the world to get US collaborators to make a crappy videotape of 
the film in a US theater and export it. They'd just go to their local 
theaters and see it in its full glory.

Phil



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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread Sandy Harris
John Gilmore wrote:


For "normal" products, market segmentation is neither
forbidden by law nor protected by law.  ...  The law is silent on
the issue.
 


This is false.  Market segmentation by country is deliberately
outlawed by "free trade" laws and treaties, which exist to benefit
consumers by letting them import whatever products they want from
other countries.

For example, in New Zealand, the DVD region-code system was
found to violate their free-trade laws, and therefore New Zealand
never permitted one-region players to be sold there.

Can you cite a reference for that? I saw a claim about it on the 
opendvd.org
web site some time back and tried to confirm by talking to the NZ embassy
in Canada and then to someone in NZ that they referred me to. No-one I
spoke to knew of such a law or ruling.

New Zealanders I've spoken to do say players sold there are typically
region-free.

Australia's Competition Commissioner has done some good
stuff on this:
http://www.accc.gov.au//fs-search.htm

To quote two speeches from that site:

Difficulties between the pro-competitive community and Intellectual Property
Mr Ross Jones, Commissioner
Australian Competition & Consumer Commission

| Australian consumers are currently suffering from an international cartel that
| restricts their access to digital versatile discs (DVDs). The cartel, headed
| by major film studios in agreement with the manufacturers of DVD players, has
| divided the world into regions. This ensures that DVDs on sale in Australia
| will only function on a DVD player licensed for region 4 that includes Australia.
| The stated aim is to protect cinema ticket sales by preventing people viewing
| movies on DVDs in their homes before distribution to cinemas. The Australian
| subsidiaries of US film companies have been requested by the Commission to 
| explain their actions. It will then decide what action can be taken.

Globalisation and Competition Policy
Professor Allan Fels, Chairman
Australian Competition & Consumer Commission

| The Commission has requested the Australian subsidiaries of United States film
| companies to explain why their regional restrictions on DVDs should not be deemed
| a breach of the Trade Practices Act 1974. ...
|
| The Commission believes RPC is anti-competitive with Australian consumers lacking
| a choice of DVD videos and possibly paying higher prices.

These documents are a couple of years old. Does anyone have more recent news
from Oz? In particular, how did the cartel respond to these questions 
and has the
Commission actually taken any action against them?



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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread Matt Blaze
> > Isn't it about a million times more probable that the industry's main
> > concern was PEOPLE RIPPING DVDS AND TRADING THE FILES?
> 
> Well, zone locking helps curb this because it *reduces* the market for each
> copy. The finer the zone locking resolution, the more effort an attacker needs
> to make in order to be able to trade more copies.

Huh?  DVD region coding doesn't prevent this at all; ripped decrypted
DVD mpeg files could be played anywhere.

The DVD region code scheme would, however, be mildly effective in reducing
the utility of (encrypted) DVD images by making them playable only on
players from the original market.  But as others have pointed out, there
aren't any consumer DVD writers that can write out an entire image, so
this wouldn't happen anyway with current products.

By the way, import region-free DVD players *are* available, quite
legally, within the US, as are non-region 1 disks.  Kim's video in NYC
is one source.  They are all unfamiliar off brands, however - you won't
find Sony or Matsushita (deliberately) producing one.  The main reason such
players aren't more popular or commonly available here is not the DMCA,
but rather lack of consumer demand.  Most popular movies are available and
cheapest on a region 1 version of the release. It's people outside North
America who buy most of the multi-region players, primarily to take
advantage of the region 1 market.  North American consumers of multi-region
players and other regions' disks are mostly just fanatics like me who
have less mainstream taste and want the few disks that aren't available
for region 1.





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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread Ed Gerck


Nomen Nescio wrote:

> John S. Denker writes:
> > The main thing the industry really had at stake in
> > this case is the "zone locking" aka "region code"
> > system.
>
> I don't see much evidence for this.  As you go on to admit, multi-region
> players are easily available overseas.  You seem to be claiming that the
> industry's main goal was to protect zone locking when that is already
> being widely defeated.
>
> Isn't it about a million times more probable that the industry's main
> concern was PEOPLE RIPPING DVDS AND TRADING THE FILES?

Well, zone locking helps curb this because it *reduces* the market for each
copy. The finer the zone locking resolution, the more effort an attacker needs
to make in order to be able to trade more copies.

Cheers,
Ed Gerck


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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread David Turner
On Wed, 2003-01-08 at 05:50, Pete Chown wrote:

> With DVDs we have a complex situation.  Supposedly studios can make more 
> per film, so they can afford to make more marginal films. 

To make films which will not make money is not an economically rational
action even if one is making other films which do make money. This is
the point the 17 economists made in their Eldred amicus.  

Disclaimer: I'm not an economist.

-- 
-Dave Turner Stalk Me: 617 441 0668

"On matters of style, swim with the current, on matters 
of principle, stand like a rock." -Thomas Jefferson


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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread James A. Donald
--
It is easy to imagine situations where some government
intervention will improve efficiency.   But who will lobby for
such interventions?

Of course, situations where government interventions will
create monopoly profits at the expense of considerable loss of
efficiency are far more common, and have lobby groups.

Thus whenever some clever economist claims to have discovered a
situation of the first kind, chances are it is a situation of
the second kind, thinly disguised. 

--digsig
 James A. Donald
 6YeGpsZR+nOTh/cGwvITnSR3TdzclVpR0+pr3YYQdkG
 ycWZHQlgKti6MMd4J3O4W7WPmUH38C4yaakLV93r
 4w2zz8RnIPwcoBeYSdkQfFKWGB5DFqTtDR+iru6cQ


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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread bear


On Wed, 8 Jan 2003, Pete Chown wrote:


>One last point is that governments serve the interests primarily of
>their own people.  So the job of Britain's government is to get me, and
>other Brits, the best possible deal on films within the UK.  This might
>mean balancing the interests of British consumers against British film
>producers.  It doesn't mean balancing British consumers against foreign
>film producers.  If no films were made in Britain, the government would
>logically insist on a completely free market that allowed parallel
>imports and circumvention measures.

Ah, but you're forgetting the whole "globalization" issue.

Governments aren't answering to their own people any more; they're all
striving to become a part of the "new world order" where a norwegian
can be brought to court for a supposed violation of american copyright
laws or where the Russian Dmitri Sklyarov can be jailed in the USA for
DOING HIS JOB IN RUSSIA.  We're moving forward into a glorious new
world where governments can impose laws upon their own people, not by
the fickle and divisive will of those governed, but rather in response
to international treaties and agreements with other nations promoting
global unity and harmony.

Cryptography is a part of that wonderful vision...  if the people of
different nations can be prevented from communicating effectively with
one another, or exercising their freedoms in ways that affect one
another, then effective opposition to global unity may be reduced, and
we can all become better servants and markets to our corporate
masters.

All power to the dromedariat!

Bear

PS.  If you happen to be mentally defective, you may not recognize
the foregoing as sarcasm.  Please take this into account when
composing your reply.


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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread Eric Rescorla
Pete Chown <[EMAIL PROTECTED]> writes:
> One last point is that governments serve the interests primarily of
> their own people.  So the job of Britain's government is to get me,
> and other Brits, the best possible deal on films within the UK.  This
> might mean balancing the interests of British consumers against
> British film producers.  It doesn't mean balancing British consumers
> against foreign film producers.  If no films were made in Britain, the
> government would logically insist on a completely free market that
> allowed parallel imports and circumvention measures.

Maybe. Not necessarily if that meant that no new movies ever got
made. Now, the UK isn't a big enough market for this, but consider
what would happen if the US said "listen, free drugs would be great
for consumers so let's get rid of all drug patents". This would
probably dramatically increase social welfare at the moment, since
there are quite a few people who would buy drugs if they were
cheaper. (It's of course not Pareto dominant). However, it seems
likely that this would have such a negative effect on future
production that it would lower social welfare in the future.

-Ekr

-- 
[Eric Rescorla   [EMAIL PROTECTED]]
http://www.rtfm.com/

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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread Eric Rescorla
"Karsten M. Self" <[EMAIL PROTECTED]> writes:
> on Tue, Jan 07, 2003 at 04:10:27PM -0800, Eric Rescorla ([EMAIL PROTECTED]) wrote:
> > However, if he can price discriminate, he can sell two copies,
> > one at 3 and one at 6. This makes it profitable for him to
> > produce the book.
> 
> ...and the usual mechanism is to produce various versions of the book:
> 
>   - A premium hardcover.
>   - A "trade paperback".
>   - A pulp paperback.
>   - A premeium, leather-bound, acid-free archival quality, hand-signed,
> and specially illustrated, collectors edition.
Well, that's certainly one option. However, there are certainly
other examples, such as senior citizens discounts. 

> Where I see a fundamental conflict on the two classic cypherpunk issues
> of free access to data, but protection of privacy, is this:
> 
>   - Much of the fair use / DRM industry activity seeks to limit
> access to data which is inherently public.
> 
>   - Much of the privacy debate (now wrapped in the mantel of national
> security, though marketing data still plays a major role) seeks to
> make public data which is inherently private, anonymous, or both.
> 
> I see the traditional cypherpunks line in both cases as being more
> closely aligned with "natural state" -- how things would be without
> major intervention -- and thus more sympathetic.

I think part of the point here is that legal measures to enforce price
discrimination might well be Pareto-dominant in some cases. When
there is a conflict between liberty and Pareto dominance, economists
get a headache. [1]

-Ekr

[1] Obligatory reference. Amartya Sen "On the impossibility of the 
Paretial liberal".

-- 
[Eric Rescorla   [EMAIL PROTECTED]]
http://www.rtfm.com/

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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread John Gilmore
> The truly amazing thing about this case is that the
> "crime" would not have occured if the studios had used
> decently-strong crypto.  It's ironic that in an age when
> for cryptographers enjoy a historically-unprecedented
> lopsided advantage over cryptanalysts, the industry
> adopted a system that could be cracked by amateurs.
> This probably wasn't simply due to stupidity in the
> industry; it is more plausibly attributed to stupidity
> in the US export regulations which induced the industry
> to use 40-bit keys.

Actually, the scheme was invented in Japan, and the
"predecessor-in-interest to the DVD-CCA", Matsushita, designed it to
be weak because Japanese export laws prevented the export of more than
40-bit encryption.

The US had pressured Japan to impose 40-bit crypto export controls.
The Japanese laws didn't change, even after EFF's Bernstein lawsuit
and commercial firms' political pressure forced US policy to become
sensible.  Last I heard, crypto export is still a morass in Japan.

> US law is not the same as Norwegian law.  You should
> not imagine that this case sets a precedent for US
> courts.

Correct, but.  One of the basic prongs of the entire DVDCCA "trade
secret" series of cases was that the reverse-engineering had been
illegal in Norway.  If it wasn't illegal to do it, it wasn't illegal
to reproduce the results of it.  Since Norwegian courts have
determined that it wasn't illegal to reverse-engineer it, there is no
case against any of the defendants.  Like Matt Pavlovich, Andrew
Bunner, and many dozens of other people who DVDCCA have been trying to
drag into California courts.  You may not have noticed, but EFF and its
pro-bono partners have been spending major time on winning these cases.
The Norwegian decision will make it much easier.

> For "normal" products, market segmentation is neither
> forbidden by law nor protected by law.  ...  The law is silent on
> the issue.

This is false.  Market segmentation by country is deliberately
outlawed by "free trade" laws and treaties, which exist to benefit
consumers by letting them import whatever products they want from
other countries.

For example, in New Zealand, the DVD region-code system was
found to violate their free-trade laws, and therefore New Zealand
never permitted one-region players to be sold there.

The Coors brewery tried to limit distribution of their beer to certain
Western states.  They failed.  My local liquor store in Washington, DC
made a ton of money bringing in semi-loads of Coors, in violation of
Coors company policy, and selling them to thirsty expatriate Rocky
Mountainers.

Similarly, the US Supreme Court recently struck down laws in many US
states that prohibited the interstate purchase of wine and other
products.  These laws were all designed to benefit local producers, at
the expense of local consumers.  Most of these laws were wrapped up in
a cloak of "consumer protection against shoddy products" or
"protection of minors" but it was easy to pierce that veil to see the
monopoly interest.

(This is not to say that market segmentation is dead in the US!  Many
continue.  The federally supported "Milk Compact" deliberately
segments the New England market and costs consumers of milk many
billions of dollars per year.  The federal DMCA has nothing to do with
protecting copyrights and everything to do with protecting monopolies,
as the judge agreed in the 2600 case.  Many state and local laws
continue to restrict entry into fields such as lawyering, surveying,
haircutting, and even carpentry ("union shop" laws).  Producers are
always looking for political opportunities to outlaw their
competition, and there are always corrupt people inside governments,
who are happy to oblige.)

> We should try to avoid overwrought arguments about the
> "morality" of market segmentation and/or arbitrage.

Unfortunately you set the wrong tone by starting as apologist for it.

> In fact it is easy to demonstrate that _some_ market
> segmentation is good for society as a whole.

The kind of segmentation your graphs rely on can easily be created
by *time* segmentation.  Producers start off charging high prices for
their goods, and then gradually reduce the prices as they ramp up
volumes, pay off their startup costs, learn the desires of their market
better, etc.  This gets the social benefit you desire, without propping
up any artificial forms of segmentation.

Of course, there are always people who will claim that people aren't
free to change their prices up or down over time.  (After the
earthquake, according to those folks, bottled water should sell for
the same price as before, even if at that price the entire supply has
sold in two hours, to the people who value the water least.)

> The closest they could come was to make it slightly hard
> to get a _multi-region_ player.  The manufacturers of
> player hardware had to do the studios' bidding because of
> the the controversial (to say the least) "anti-circumvention"
> provisions of

Re: DeCSS, crypto, law, and economics

2003-01-08 Thread Alan
On Tue, 2003-01-07 at 21:09, bear wrote:
> On Tue, 7 Jan 2003, alan wrote:
> 
> 
> > Not to mention the two seasons of Futurama that are only available
> > on Region 2 PAL DVDs.  (Or the other movies and TV shows not allowed
> > by your corporate masters.)  "They Live" is another film only
> > available from Region 2.  Maybe it tells too much about the movie
> > industry...
> 
> This makes an interesting point.  While the argument that market
> segmenting may increase the ability to provide material in all
> markets, the fact is that given region coding, the producers of
> this stuff *DON'T* provide the material in all markets.
> 
> If their argument, that the increased market size available with
> region coding enables economies of scale, were actually the driving
> force behind region coding, there should be no such thing as content
> available in one region that is unavailable in another.
> 
> Thus their actions betray that they have a different motive. Therefore
> the public skepticism regarding the truth of their assertions about
> their motivations seems fairly solidly grounded on fact.

The reasoning seems to be pure greed.  If you look at the zones, they
are more economic than anything else.

Another theory is it allows them to edit movies for different markets. 
(Such as what Miramax does to movies out of Hong Kong.  Region codes
help prevent the average viewer from being able to see the film in the
original form and realize just how much they screwed up the film.)

Another argument for the regions is the differing formats for TV
signals. (NTSC v.s. PAL.)  It is a bogus argument as you can find DVD
players that will convert the signal with little or no problem.  (Apex
produced one that was incredibly cheap and works great.)

> ( who likes a fair amount of stuff that is only available
>   coded for region 6 ).

You made me have to look up what region 6 was.  (Here is a good
reference for those of you who don't know or remember:
http://www.ilovedvd.co.nz/regioncodes.asp )

Most of the titles i have seen from China are region free.  (Hong Kong
makes a good deal of money from Americans who want to see Chinese films
uncut.  I know, because they are making a fortune off of me...)

-- 
Alan <[EMAIL PROTECTED]>


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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread Karsten M. Self
on Tue, Jan 07, 2003 at 04:10:27PM -0800, Eric Rescorla ([EMAIL PROTECTED]) wrote:
> Pete Chown <[EMAIL PROTECTED]> writes:

> The interesting thing about market segmentation (as Mr. Denker pointed
> out) is that it's often good for everyone, particularly in cases
> where marginal costs of production are low. 
> 
> Consider the following simple case:
> A a publisher is deciding to publish some book X. The marginal
> cost of production is zero but it costs $7 to do the initial
> setup (writing, typesetting, etc.)
> 
> There are only two possible customers for this book. One of
> these customers is willing to pay 6 for the book and the other
> 3.
> 
> There is no uniform price at which this book can be sold that
> doesn't result in the publisher losing money. If he charges 6,
> he will sell one copy and be out a dollar. If he charges 3 he
> sells two copies but is still out a dollar. Under these
> conditions, the book will not be produced.
> 
> However, if he can price discriminate, he can sell two copies,
> one at 3 and one at 6. This makes it profitable for him to
> produce the book.

...and the usual mechanism is to produce various versions of the book:

  - A premium hardcover.
  - A "trade paperback".
  - A pulp paperback.
  - A premeium, leather-bound, acid-free archival quality, hand-signed,
and specially illustrated, collectors edition.

...the price discrimination here plays on a number of factors, including
timing (HC and TC are generally released in that sequence, with 6-12
months between, pulp paperback isn't released for 12-18 months following
publication).  The different products also appeal to taste and vanity by
quality (or at least appearance) of the work.

What's distinctive about the last several years of RIAA[1] and MPAA
actions is that these industries are seekin legal sanction to enforce
price discrimination.  The basis for this legal sanction isn't
production-side differences, but an attempt to manage the demand-side
differntials which exist.

This is fundamentally different from import duties charged, say, on
account of labor, production, or environmental differences between
production methods (and costs) on industrial goods.  Here I _do_ see a
fair basis for making the distinction, if a market is to fairly value
environmental externalites.

Where I see a fundamental conflict on the two classic cypherpunk issues
of free access to data, but protection of privacy, is this:

  - Much of the fair use / DRM industry activity seeks to limit
access to data which is inherently public.

  - Much of the privacy debate (now wrapped in the mantel of national
security, though marketing data still plays a major role) seeks to
make public data which is inherently private, anonymous, or both.

I see the traditional cypherpunks line in both cases as being more
closely aligned with "natural state" -- how things would be without
major intervention -- and thus more sympathetic.


> Hal Varian has a very readable exposition of this topic
> (from which I got this example) at:
> http://www.sims.berkeley.edu/~hal/Papers/price-info-goods.pdf

If an economist can be a rock star, Varian is one of 'em.  His site, and
the book _Information Rules_ (see his website or
http://www.inforules.com/) are very highly recommended.  I suspect most
folks here are already familiar with them.

Peace.


Notes:

  1.  a transparent mask for Sony (Japan), EMI (England), Warner, BMG
  (Germany), Universal (France), the so-called American recording
  industry, to hide behind.

-- 
Karsten M. Self <[EMAIL PROTECTED]>http://kmself.home.netcom.com/
 What Part of "Gestalt" don't you understand?
   Geek for hire:  http://kmself.home.netcom.com/resume.html

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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread Perry E. Metzger

"Steven M. Bellovin" <[EMAIL PROTECTED]> writes:
> In message <[EMAIL PROTECTED]>, "Perry E. Metzger" writes:
> >I don't know anyone who trades video files -- they're pretty big and
> >bulky. A song takes moments to download, but a movie takes many many
> >hours even on a high speed link. I have yet to meet someone who
> >pirates films -- but I know lots of hardened criminals who watch DVDs
> >on Linux and BSD. I'm one of these "criminals".
> 
> I'm 100% certain it's happening, today.

Sure it is. I'm merely noting it is less widespread than pirating
audio. Also, as I note, if DeCSS weren't around, people would just
steal whole DVD images and leave them encrypted, because you don't
need to decrypt them to steal and view them. DeCSS is not the problem.


-- 
Perry E. Metzger[EMAIL PROTECTED]

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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread Pete Chown
Eric Rescorla wrote:


No, this isn't true. Say that Americans are willing to pay 50% more
for DVDs than Europeans. It would make sense for producers to attempt
to segment the market.


You are right that producers would want to segment the market, but we 
have no reason to introduce extra laws to help them.  We would only have 
a reason to do that when segmenting the market results in greater 
efficiency, not merely greater profits.

With DVDs we have a complex situation.  Supposedly studios can make more 
per film, so they can afford to make more marginal films.  Also more 
people are offered films at a price they can afford.  Oddly, in practice 
it doesn't seem to work this way.  Films tend to be launched in the US, 
which is one of the lowest cost markets.  Films that do badly could 
theoretically be released at a higher cost in other markets, to recoup 
the expenditure through differential pricing.  In practice they seem to 
be dropped.

Coupled with this, we have the negative effect on the technology 
industry that results from DRM.  A small efficiency gain for the content 
industry could become a large efficiency loss for the technology 
industry.  Suppose that open source operating systems were technically 
able to play DVDs but were prohibited from doing so by law.  Suppose 
also that open source was a much more efficient economic model.  You 
would now have a more classic case of market distortion, which also 
gives rise to inefficiency.

One last point is that governments serve the interests primarily of 
their own people.  So the job of Britain's government is to get me, and 
other Brits, the best possible deal on films within the UK.  This might 
mean balancing the interests of British consumers against British film 
producers.  It doesn't mean balancing British consumers against foreign 
film producers.  If no films were made in Britain, the government would 
logically insist on a completely free market that allowed parallel 
imports and circumvention measures.

I don't speak for Mr. Denker, but the point I think is relevant here
is that there are a fair number of situations in which removal of
some freedom would result in a superior situation for everyone
(Pareto-dominant). I'm not convinced that maximising freedom
is the best approach in all such cases.


I agree; for example copyright itself is a restriction on commercial 
freedom in a sense.  You have to weigh up the pros and cons in each 
case.  For me the collateral damage from DRM and region locking is 
simply too great, and so I believe it should be prohibited (or that 
people should be allowed to circumvent it, which would have the same 
effect).

--
Pete


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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread James A. Donald
--
I wote:
> I pirate films routinely

 Correction.  I watch made for TV shows distributed through the
internet routinely.

Full length films are not shared to any great extent, because
their sheer size makes them such a pain. 

--digsig
 James A. Donald
 6YeGpsZR+nOTh/cGwvITnSR3TdzclVpR0+pr3YYQdkG
 gUT7fZ6Trnc/9Kb/H1Fuuj0atdyZ+LqudqxXb84E
 4Wfqp3BAtgVYkqbEMsnlaP6ulQPgSL1YCQwZh8LlS


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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread bear


On Tue, 7 Jan 2003, alan wrote:


> Not to mention the two seasons of Futurama that are only available
> on Region 2 PAL DVDs.  (Or the other movies and TV shows not allowed
> by your corporate masters.)  "They Live" is another film only
> available from Region 2.  Maybe it tells too much about the movie
> industry...

This makes an interesting point.  While the argument that market
segmenting may increase the ability to provide material in all
markets, the fact is that given region coding, the producers of
this stuff *DON'T* provide the material in all markets.

If their argument, that the increased market size available with
region coding enables economies of scale, were actually the driving
force behind region coding, there should be no such thing as content
available in one region that is unavailable in another.

Thus their actions betray that they have a different motive. Therefore
the public skepticism regarding the truth of their assertions about
their motivations seems fairly solidly grounded on fact.

Bear

( who likes a fair amount of stuff that is only available
  coded for region 6 ).






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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread Sandy Harris
Pete Chown wrote:


John S. Denker wrote:


Note that in the absence of market segmentation,
the society as a whole is worse off.



I see what you mean, but do you think it applies to DVDs?  The 
segmentation needs to be in each market, between rich and poor 
consumers.  What we actually have is segmentation between markets, say 
Europe and the US.  Europe and the US have similar income per head, 
but various obscure factors cause products like DVDs to be more 
expensive in Europe.

The other interesting thing about market segmentation is that it is 
often illegal.  Britain's competition law is being reformed in summer 
this year.  Running a cartel will become a crime, in addition to the 
current civil penalty regime.  It will also become possible to bring 
private anti-trust suits.  In other words we are moving towards the 
American model of anti-trust.

I intend to make a complaint about DVD region coding, and I will wait 
until the summer because the prospect of going to prison will add some 
extra pizazz for the defending team.  Don't get too excited, though, 
it isn't always easy to get these things moving in the UK.  Read about 
the Walls Ice Cream case if you're curious... 

I've tried to do that in Canada, without a lot of success. See this 
mailing list post:
http://www.digital-copyright.ca/discuss/40

Since I'm now teaching English in China, I am not following up on it. 
See the rest
of that list's archive, or ask on that list, to see if others are.

One interesting result I did get was having a Canadian civil servant 
gleefully
point me to information on what the aussies were up to. See this post:
http://www.digital-copyright.ca/discuss/17

For UK stuff, see:
http://www.theregister.co.uk/content/archive/9348.html
http://www.theregister.co.uk/content/archive/9357.html


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Re: DeCSS, crypto, law, and economics

2003-01-08 Thread Steven M. Bellovin
In message <[EMAIL PROTECTED]>, "Perry E. Metzger" writes:
>
>
>I don't know anyone who trades video files -- they're pretty big and
>bulky. A song takes moments to download, but a movie takes many many
>hours even on a high speed link. I have yet to meet someone who
>pirates films -- but I know lots of hardened criminals who watch DVDs
>on Linux and BSD. I'm one of these "criminals".

I'm 100% certain it's happening, today.  And -- dare I suggest that the 
industry is being farsighted in anticipating higher bandwidth, and 
wants to close the barn door *before* the horse's image is "stolen"?


--Steve Bellovin, http://www.research.att.com/~smb (me)
http://www.wilyhacker.com (2nd edition of "Firewalls" book)



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RE: DeCSS, crypto, law, and economics

2003-01-07 Thread James A. Donald
--
On 8 Jan 2003 at 0:30, Ian Brown wrote:
> the public tends to be skeptical when an industry claims that
> expert opinion shows that what is good for the company will
> also be good for the nation, and that state aid in enforcing
> its desires will produce an economically efficient result

Situations often arise where government enforcement in
supporting the anti competitive desires of the company would
produce a more efficient result.

But when this happens, invariably the result is that the
company, being a concentrated interest, soon arranges to
receive a good deal more government enforcement of its desires
than is economically efficient.


--digsig
 James A. Donald
 6YeGpsZR+nOTh/cGwvITnSR3TdzclVpR0+pr3YYQdkG
 uytnfDL5wk7zyB1EE5/tKYXC0KzS6sXDK6/jxK07
 4SvjkuJx2a+3oxJKR0lkoulNU5XL8/gqJuBIxsI48


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Re: DeCSS, crypto, law, and economics

2003-01-07 Thread James A. Donald
--
On 7 Jan 2003 at 20:25, Perry E. Metzger wrote:
> I don't know anyone who trades video files -- they're pretty 
> big and bulky. A song takes moments to download, but a movie 
> takes many many hours even on a high speed link. I have yet 
> to meet someone who pirates films -- but I know lots of 
> hardened criminals who watch DVDs on Linux and BSD. I'm one 
> of these "criminals".

I pirate films routinely.  These are almost invariably films 
that I could not obtain in any other way.  The amount of time I 
spend watching films on my computer, and on television, is 
roughly comparable.

Similarly most of the music I listen to on my computer, I could
not readily purchase.  Stuff I can readily get through
commercial channels I do -- the convenience, rather than the
cost, is important to me. 

--digsig
 James A. Donald
 6YeGpsZR+nOTh/cGwvITnSR3TdzclVpR0+pr3YYQdkG
 G6dKu0+L5GqnwO9+mBiUuQ4bgcPQWz7zc6hp0Ku0
 4lRkw8fWFbF5+wXCL7T1Xi9eLN/Z/LxSrOd5a5W1p


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Re: DeCSS, crypto, law, and economics

2003-01-07 Thread alan
On 7 Jan 2003, Perry E. Metzger wrote:

> I don't know anyone who trades video files -- they're pretty big and
> bulky. A song takes moments to download, but a movie takes many many
> hours even on a high speed link. I have yet to meet someone who
> pirates films -- but I know lots of hardened criminals who watch DVDs
> on Linux and BSD. I'm one of these "criminals".

There is some trading of TV shows, but not movies.  (Some, but only things 
that you cannot buy legally.)  The few "pre-release" things you find on 
the file-sharing networks have the same (lack of) quality that the 
bootleg tapes have. The only large films worth the time are things that 
you cannot buy.  (Although "Song of the South" should be required viewing 
in schools.  It makes racism *boring*.)

A XVCD copy of a 22 minute TV show runs about 425 megs.  Anything smaller 
tends to look like crap.  Multiply that out to a feature length film and 
you find out why it is impractical to trade films in this manner.  (It is 
not worth the 2 days it will take for the download. Most people will go 
out and buy it than waste the time.)

> Many nights, I close the blinds and illegally use the computer I
> lawfully paid for to view the DVDs I lawfully paid for. To do that, I
> make use of DeCSS. My nice Unix based DVD player, ogle, needs it to
> read the drive. A little later this evening I'll be watching an
> episode of "I, Claudius" I bought and paid for, using this "criminal"
> software combination. Hopefully no one will learn of my shamefully
> immoral act. Please don't tell anyone.

Not to mention the two seasons of Futurama that are only available on 
Region 2 PAL DVDs.  (Or the other movies and TV shows not allowed by your 
corporate masters.)  "They Live" is another film only available from 
Region 
2.  Maybe it tells too much about the movie industry...


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Re: DeCSS, crypto, law, and economics

2003-01-07 Thread Perry E. Metzger

Nomen Nescio <[EMAIL PROTECTED]> writes:
> I don't see much evidence for this.  As you go on to admit, multi-region
> players are easily available overseas.

Sure, but they're generally "illegal". I can buy grey market
non-regioned players in the U.S. but the manufacturers are violating
within the intellectual property agreements that prevent such
behavior.

> You seem to be claiming that the
> industry's main goal was to protect zone locking when that is already
> being widely defeated.
> 
> Isn't it about a million times more probable that the industry's main
> concern was PEOPLE RIPPING DVDS AND TRADING THE FILES?

Without DeCSS, the piracy problem would have in no way been
improved. Even if you didn't want to use physical DVDs, it wouldn't
have been an issue. Ripping the raw bits encrypted bits from a DVD
drive is easy. From there, you just would have had to have built a
driver that pretended to be a DVD drive but actually read a chunk of
disk, and presto -- Windows DVD player software would be perfectly
happy aiding and abetting your piracy. For those that want physical
DVDs, the encryption of course prevented nothing at all -- bits are
bits.

No, what region coding did largely was allow the industry to try to
prevent grey market sales.

I don't know anyone who trades video files -- they're pretty big and
bulky. A song takes moments to download, but a movie takes many many
hours even on a high speed link. I have yet to meet someone who
pirates films -- but I know lots of hardened criminals who watch DVDs
on Linux and BSD. I'm one of these "criminals".

Many nights, I close the blinds and illegally use the computer I
lawfully paid for to view the DVDs I lawfully paid for. To do that, I
make use of DeCSS. My nice Unix based DVD player, ogle, needs it to
read the drive. A little later this evening I'll be watching an
episode of "I, Claudius" I bought and paid for, using this "criminal"
software combination. Hopefully no one will learn of my shamefully
immoral act. Please don't tell anyone.


-- 
Perry E. Metzger[EMAIL PROTECTED]

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Re: DeCSS, crypto, law, and economics

2003-01-07 Thread alan
On Wed, 8 Jan 2003, Nomen Nescio wrote:

> John S. Denker writes:
> > The main thing the industry really had at stake in
> > this case is the "zone locking" aka "region code"
> > system.
> 
> I don't see much evidence for this.  As you go on to admit, multi-region
> players are easily available overseas.  You seem to be claiming that the
> industry's main goal was to protect zone locking when that is already
> being widely defeated.

Try selling a regionless player in this country.  It happens, but not in 
public.  Region codes make them tons of money.  (They are economic zones, 
nothing else.)

> Isn't it about a million times more probable that the industry's main
> concern was PEOPLE RIPPING DVDS AND TRADING THE FILES?  Movies are
> freely available on the net, just like MP3s, and the DeCSS software was
> the initial technology that made ripping DVD's possible.  Many people
> would rather get something for free than to pay for it, and DVD ripping
> allows that for movies.  The MPAA obviously is afraid of following the
> RIAA into oblivion.

The think that does not get press is that there is a bunch of money being 
made on the players themselves.  Having DeCSS allows you to counterfeit 
players and avoid the licence fees.

It also showed that they were generally stupid gits since the CSS 
algorythm has only 24 effective bits in the key.  Brute forcing the key 
once you know this takes *seconds* on my PC.  Snake oil makes the discs 
play so much smoother...


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RE: DeCSS, crypto, law, and economics

2003-01-07 Thread Ian Brown
> It would be nice to have an enlightened discussion of such topics.

"Lay people often react to differential pricing for the same good with a
sense of unfairness. No matter how many times they are lectured by the
economists that it is actually to the benefit of all that producers be able
to charge different prices to groups with different ability and willingness
to pay, the popular reaction is normally "that's not fair."

Economists have tended to view this as a sign of the public's naive failure
to understand market mechanisms. If the drug company can charge the poor
nation a low price and the rich nation a high price for the same drug, all
will be better off. It is better, then, that gray markets, parallel imports,
and resale be prohibited. Popular resistance can be branded as a kind of
economically illiterate Jacobinism. There is certainly some truth to this
depiction; there are indeed benefits to price discrimination under certain
circumstances. But I would like to think that the popular skepticism towards
price discrimination also reflects something much more rational. Lacking
time to educate themselves in every aspect of market and culture, the public
tends to be skeptical when an industry claims that expert opinion shows that
what is good for the company will also be good for the nation, and that
state aid in enforcing its desires will produce an economically efficient
result. And you know what? Given the arguments reviewed in this Paper, I
would say that the public has a point."

http://law.vanderbilt.edu/lawreview/vol536/boyle.pdf



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Re: DeCSS, crypto, law, and economics

2003-01-07 Thread Eric Rescorla
Pete Chown <[EMAIL PROTECTED]> writes:

> John S. Denker wrote:
> 
> > Note that in the absence of market segmentation,
> > the society as a whole is worse off.
> 
> I see what you mean, but do you think it applies to DVDs?  The
> segmentation needs to be in each market, between rich and poor
> consumers.  What we actually have is segmentation between markets, say
> Europe and the US.
No, this isn't true. Say that Americans are willing to pay 50% more
for DVDs than Europeans. It would make sense for producers to attempt
to segment the market.

The interesting thing about market segmentation (as Mr. Denker pointed
out) is that it's often good for everyone, particularly in cases
where marginal costs of production are low. 

Consider the following simple case:
A a publisher is deciding to publish some book X. The marginal
cost of production is zero but it costs $7 to do the initial
setup (writing, typesetting, etc.)

There are only two possible customers for this book. One of
these customers is willing to pay 6 for the book and the other
3.

There is no uniform price at which this book can be sold that
doesn't result in the publisher losing money. If he charges 6,
he will sell one copy and be out a dollar. If he charges 3 he
sells two copies but is still out a dollar. Under these
conditions, the book will not be produced.

However, if he can price discriminate, he can sell two copies,
one at 3 and one at 6. This makes it profitable for him to
produce the book.

Hal Varian has a very readable exposition of this topic
(from which I got this example) at:
http://www.sims.berkeley.edu/~hal/Papers/price-info-goods.pdf

> > There are two not-quite-separate sensible questions:
> >  -- Find a way to maximize the created wealth.
> >  -- Decide how to divvy up the created wealth among
> > the various stakeholders:  inventors, authors, performers,
> > publishers, manufacturers, wholesalers, retailers,
> > consumers, et cetera.
> 
> Would you rather maximise wealth or maximise competition?  It sounds
> like a silly question, but suppose the technology and legal framework
> required to support your solution prevented the use of open source.
> In that case, I would rather maximise competition.  In any case, it
> might be that this would maximise wealth in the long term, by
> increasing technological innovation.

I don't speak for Mr. Denker, but the point I think is relevant here
is that there are a fair number of situations in which removal of
some freedom would result in a superior situation for everyone
(Pareto-dominant). I'm not convinced that maximising freedom
is the best approach in all such cases.

-Ekr


-- 
[Eric Rescorla   [EMAIL PROTECTED]]
http://www.rtfm.com/

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Re: DeCSS, crypto, law, and economics

2003-01-07 Thread Nomen Nescio
John S. Denker writes:
> The main thing the industry really had at stake in
> this case is the "zone locking" aka "region code"
> system.

I don't see much evidence for this.  As you go on to admit, multi-region
players are easily available overseas.  You seem to be claiming that the
industry's main goal was to protect zone locking when that is already
being widely defeated.

Isn't it about a million times more probable that the industry's main
concern was PEOPLE RIPPING DVDS AND TRADING THE FILES?  Movies are
freely available on the net, just like MP3s, and the DeCSS software was
the initial technology that made ripping DVD's possible.  Many people
would rather get something for free than to pay for it, and DVD ripping
allows that for movies.  The MPAA obviously is afraid of following the
RIAA into oblivion.

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Re: DeCSS, crypto, law, and economics

2003-01-07 Thread Pete Chown
John S. Denker wrote:


Note that in the absence of market segmentation,
the society as a whole is worse off.


I see what you mean, but do you think it applies to DVDs?  The 
segmentation needs to be in each market, between rich and poor 
consumers.  What we actually have is segmentation between markets, say 
Europe and the US.  Europe and the US have similar income per head, but 
various obscure factors cause products like DVDs to be more expensive in 
Europe.

The other interesting thing about market segmentation is that it is 
often illegal.  Britain's competition law is being reformed in summer 
this year.  Running a cartel will become a crime, in addition to the 
current civil penalty regime.  It will also become possible to bring 
private anti-trust suits.  In other words we are moving towards the 
American model of anti-trust.

I intend to make a complaint about DVD region coding, and I will wait 
until the summer because the prospect of going to prison will add some 
extra pizazz for the defending team.  Don't get too excited, though, it 
isn't always easy to get these things moving in the UK.  Read about the 
Walls Ice Cream case if you're curious...

One thing I will need, though, is an economic argument, so keep it coming...

It would be the height of foolishness and the height
of hypocrisy to pretend that whatever favors my selfish
interests is "moral" while whatever favors somebody else's
selfish interests is "immoral".  Much of the debate about
intellectual property issues, on both sides, stinks of
foolish hypocrisy.


I agree up to a point, but I also think properly functioning markets are 
very beneficial to a society.  I think the moral position is normally 
the one that creates the most competition.  For example, consumers 
should have the right to choose between a region-2 DVD player and a 
region free one.  People should have the right to choose between 
watching DVDs on a dedicated player, on a PC running Windows and a PC 
running Linux.

There are two not-quite-separate sensible questions:
 -- Find a way to maximize the created wealth.
 -- Decide how to divvy up the created wealth among
the various stakeholders:  inventors, authors, performers,
publishers, manufacturers, wholesalers, retailers,
consumers, et cetera.


Would you rather maximise wealth or maximise competition?  It sounds 
like a silly question, but suppose the technology and legal framework 
required to support your solution prevented the use of open source.  In 
that case, I would rather maximise competition.  In any case, it might 
be that this would maximise wealth in the long term, by increasing 
technological innovation.

--
Pete


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Re: DeCSS, crypto, law, and economics

2003-01-07 Thread Antonomasia
From: "John S. Denker" <[EMAIL PROTECTED]>

> For "normal" products, market segmentation is neither
> forbidden by law nor protected by law.  Mushrooms that
> cost $4.00 per ounce at the supermarket can be purchased
> for $4.00 per pound at the Asian grocery down the street.
> The stores are free to charge whatever they like, and I
> am free to shop wherever I like.  The law is silent on
> the issue.

Not completely.
http://news.bbc.co.uk/hi/english/business/newsid_1261000/1261060.stm
http://news.bbc.co.uk/2/hi/business/2380163.stm
http://www.fashionwindows.com/visual/2001/levis_victor.asp
   [copying from Google's cache on that last one]
   The UK supermarket lost the latest round in its fight with the US
   company after a ruling by the EU Court of Justice on Tueday.

   "The court ruled that goods from outside the European economic area
   cannot be imported without the unequivocable consent of the trademark
   owner, and we think that is the right decision," said Levi's Europe
   chief.

   The decision is the latest in the long running and very costly legal
   saga between the two companies. Tesco believes it should have the
   right to sell Levi jeans at knock down prices whereas the jeans
   manufacturer argues it has turned down the supermarket as an approved
   stockist.

   Levi sells its products through 17,000 selected outlets across Europe,
   chosen for good customer service argues the company, price rigging
   argue its pro-consumer opponents.

A further twist in the story is that Levi's plan a discount brand for
Walmart (and perhaps ASDA in UK ?) supermarkets.

> The studios arguably hold intellectual property rights
> in the CSS decoding keys, and they can collect per-player
> royalties from hw mfgrs who incorporate such keys in
> their products.  AFAIK Mr. Johansen never copied any
> such key (or even had one he could have copied), so
> this case was never about illegal copying even on a
> per-player basis.

It's been reported on this list before that among the security
failings of the play protection was one key being left unencrypted.
I don't know whether Mr. Johansen copied it - but that's not critical
to the end result of producing DeCSS.

From: Sandy Harris <[EMAIL PROTECTED]>
Date: 04Sep2000
Subject: Re: DeCSS and imminent harm ...
: Second, they used 40-bit encryption, presumably to comply with US
: export laws. This is obscenely weak. Assume you can try a million
: keys a second. 10^6 ~= 2^20 so you need 2^20 seconds. 3600 seconds
: in an hour, somewhat < 2^12 so total time is somewhat > 256 hours.
: A week or a month on a single machine, depending how fast it is.
: 
: Then they muffed the design so there are faster attacks; they don't
: even have 40 bits of actual strength. In one brief to the court,
: Dave Wagner from Berkeley said breaking this system was about the
: right level of difficulty for him to assign it as undergraduate
: homework next term.
: 
: Lastly, one of their customers muffed something else and the disks
: have one unencrypted key, which makes it easier to attack the others.


-- 
##
# Antonomasia   ant notatla.demon.co.uk  #
# See http://www.notatla.demon.co.uk/#
##

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Re: DeCSS, crypto, law, and economics

2003-01-07 Thread David Turner
On Tue, 2003-01-07 at 15:00, John S. Denker wrote:
> The studios arguably hold intellectual property rights
> in the CSS decoding keys, 

Do you mean copyrights, patents, or trade secret rights?  

Copyrights: No, keys are too short, functional, and non-expressive to be
subject to copyright.
Patents: No, you already established that there were no patents on CSS.
Trade secrets: Maybe once, but not anymore -- all ~400 keys are now
available at dozens of easy-to-find locations on the net.  We'll see
what the court in Pavlovitch has to say about this.

> AFAIK Mr. Johansen never copied any
> such key (or even had one he could have copied),

He certainly copied a player key from a software DVD player.

> The truly amazing thing about this case is that the
> "crime" would not have occured if the studios had used
> decently-strong crypto.  It's ironic that in an age when
> for cryptographers enjoy a historically-unprecedented
> lopsided advantage over cryptanalysts, the industry
> adopted a system that could be cracked by amateurs.
> This probably wasn't simply due to stupidity in the
> industry; it is more plausibly attributed to stupidity
> in the US export regulations which induced the industry
> to use 40-bit keys.

Recall that the initial player key was obtained by copying it from a
software player.  As long as humans can read software, this sort of
attack will be possible.  It doesn't depend on the strength of the key,
because the attacker is given the key.  

That said, it's unlikely that the next major media format will have
software players, and it's also unlikely that Palladium will continue to
let us read software.  

-- 
-Dave Turner Stalk Me: 617 441 0668

"On matters of style, swim with the current, on matters 
of principle, stand like a rock." -Thomas Jefferson


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DeCSS, crypto, law, and economics

2003-01-07 Thread John S. Denker
Regarding the acquittal of Jon Johansen, I quoted CNN
as saying:


The studios argued unauthorised copying was copyright theft
and undermined a market for DVDs and videos worth $20
billion a year in North America alone.


Some elements of the industry did indeed claim that,
but such claims are grossly irrelevant, and to bring
them up is foolish or dishonest.  This case was never
about unauthorized _copying_ of DVDs.  You can make a
bit-for-bit perfect copy of a DVD without decrypting
it.  Indeed it's easier to copy if you don't decrypt
it!

The main thing the industry really had at stake in
this case is the "zone locking" aka "region code"
system.  The studios like to release videos in
different parts of the world at different times,
and to charge different royalty fees in different
places.  This is called market segmentation. The
idea of an open-source player was abhorrent to them,
because it makes it easy to buy a DVD in one region
and play it in other regions.  This is an example of
arbitrage.

For "normal" products, market segmentation is neither
forbidden by law nor protected by law.  Mushrooms that
cost $4.00 per ounce at the supermarket can be purchased
for $4.00 per pound at the Asian grocery down the street.
The stores are free to charge whatever they like, and I
am free to shop wherever I like.  The law is silent on
the issue.

People who engage in market segmentation are always
looking for ways to prevent arbitrage.  For instance,
airlines make sure tickets are non-transferable, to
prevent some ticket agent from stocking up on tickets
at "excursion" prices and reselling them to business
travelers.

Movie studios never had a really good market segmentation
system, because
 -- I can legally own region-1 or region-4 DVDs or some
of both, no matter whether I live in the US or Australia.
 -- I can legally own a region-1 or region-4 DVD player,
or both, no matter whether I live in the US or Australia.

To be clear: the industry was never able to erect a legal
barrier to arbitrage of disks _or_ arbitrage of players.
The closest they could come was to make it slightly hard
to get a _multi-region_ player.  The manufacturers of
player hardware had to do the studios' bidding because of
the the controversial (to say the least) "anti-circumvention"
provisions of the 1998 "DMCA" law.

If we somewhat charitably assume the studios knew what
they were doing, their whole market segmentation scheme
was predicated on the lack of multi-region players _and_
on the assumption that players would remain sufficiently
expensive that users couldn't just buy a stack of players,
one per region.  Less charitably the scheme was predicated
on the foolish assumption that nobody would ever discover
the possibility of inter-region arbitrage of player
hardware.

I repeat, the practical issue in this case was never about
cheating the studios out of their per-disk royalties on
DVDs.

At this point you might be wondering about per-player
royalties.

  First, let's dispose of an irrelevant side-issue.  The
  rights to patents on raw DVD hardware are held by a
  consortium of hardware companies, not movie studios.
  These people presumably collected their cut when Mr.
  Johansen purchased his raw DVD drive hardware.  So
  this case was never about patent infringement.

The studios arguably hold intellectual property rights
in the CSS decoding keys, and they can collect per-player
royalties from hw mfgrs who incorporate such keys in
their products.  AFAIK Mr. Johansen never copied any
such key (or even had one he could have copied), so
this case was never about illegal copying even on a
per-player basis.

The truly amazing thing about this case is that the
"crime" would not have occured if the studios had used
decently-strong crypto.  It's ironic that in an age when
for cryptographers enjoy a historically-unprecedented
lopsided advantage over cryptanalysts, the industry
adopted a system that could be cracked by amateurs.
This probably wasn't simply due to stupidity in the
industry; it is more plausibly attributed to stupidity
in the US export regulations which induced the industry
to use 40-bit keys.

So what we have here are remarkably intrusive laws:
under US regulations the crypto must be easy to break,
while under US law it is illegal to break it.  The
latter is dressed up as a "copyright" law even if no
illegal copying is involved.

This strikes me as analogous to requiring everyone
to use pin/tumbler locks with only a single pin, so
that all locks can be picked using a popsicle stick,
and then arresting people for burglary whenever they
are caught carrying a popsicle stick.

US law is not the same as Norwegian law.  You should
not imagine that this case sets a precedent for US
courts.

Additional remarks:

We should try to avoid overwrought arguments about the
"morality" of market segmentation and/or arbitrage.
Producers and retailers will always try to benefit
themselves by segmenting the market;  consumers and
arbitrageurs will a