PD drives were a precursor to the RW technology. They both read CD-ROMS
and could read and write to PD disks. The name came from Phase-change
Disk and was invented by Panasonic. I still own two drives and too many
disks. The disks held up to 650 megs, and were the same size as CD-ROMS
or other
Sam McCandless wrote:
At 4:03 AM -0800 12/9/04, Arthur Entlich wrote:
[snip]
A small bit of technological information to perhaps clarify some issues.
[big snip]
A nice explication, Art.
Did you not deal with DVD because you agree with Brad?
No, I left out DVD because I haven't bought
Hello,
I believe the functionality of the disks in terms of DVD-+R verses
DVD-+RW is similar. DVD-RAM is based upon Phase change also, in fact
it's precursor was PD, also invented by Panasonic, and PD disks are
readable on many DVD-RAM drives.
Concerning the differences between DVD+R and
Arthur Entlich wrote:
And even if a neg was to get scratched or damaged, that is repairable.
However, a slight scratch on a CD may make it completely unreadable.
Note that there are software utilities for reading CD's that have
errors to extract the files anyway. One I've seen (can if
What's PD?
Brad
On 10/12/04 2:50, Arthur Entlich [EMAIL PROTECTED] wrote:
Sam McCandless wrote:
At 4:03 AM -0800 12/9/04, Arthur Entlich wrote:
[snip]
A small bit of technological information to perhaps clarify some issues.
[big snip]
A nice explication, Art.
Did you not deal
What software are you referring to Mike? And what limitations are there -
e.g. Which OS, interface (SCSI Vs. USB 1.1 Vs. 2.0).
I have both PC (windows 2000) and Mac (Mac OS X) available to me.
Brad
On 10/12/04 8:33, Mike Kersenbrock [EMAIL PROTECTED] wrote:
Arthur Entlich wrote:
And even
.
Anyone else find this to be true?
Hank
- Original Message -
From: Mike Kersenbrock [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, December 08, 2004 8:21 PM
Subject: [filmscanners] Re: Archiving???!!!
?ISO-8859-1?Q?H=E5kon_T_S=F8nderland?= wrote:
Yup, same solution here. Have
Most big banks use tapes as backup medium. I am not sure if
that is because they are more reliable, or just cheaper.
DDS tapes (essentially a data version of DAT) are about £2.50 each in the
UK.
Ebay yeilds a fair few DDS tape units for sale (SCSI).
DDS units have 2 capacities - the first
Hi Brad,
Interesting posting, and something most of us can certainly relate to.
A small bit of technological information to perhaps clarify some issues.
The CDs you get which are pre-written with things like software (and
music or images, for that matter) are not at al the same process as the
Arthur Entlich wrote:
Misumi and Kodak gold sputtered disks are some of the better types for
archival storage.
That was supposed to read: Mitsui and Kodak gold sputtered disks are
some of the better types for archival storage.
Art
Art,
Thanks for the info, especially on the CD-RW disk, Your comment that they
should be more reliable fits your description well. I'm going to look into
purchasing them - are you aware of any that are considered better. It would
seem that all of these are subject to how well the coatings are
At 4:03 AM -0800 12/9/04, Arthur Entlich wrote:
[snip]
A small bit of technological information to perhaps clarify some issues.
[big snip]
A nice explication, Art.
Did you not deal with DVD because you agree with Brad?
[snip]
I've been considering DVD's, but reading about the problems they
Art,
Thanks for your post. That is some of the best info I have seen on the
subject. I learned a lot!
Jim Couch
Arthur Entlich wrote:
Hi Brad,
Interesting posting, and something most of us can certainly relate to.
A small bit of technological information to perhaps clarify some issues.
...
Brad and others,
Your expereince points to a tip I have heard elsewhere - keep your older
CD drive on hand to read old discs. I did so and am very thankful I did.
I have about 20 archived discs at work that our new computers will not
read. I am in the process of recopying them to new discs. I
Hello Brad,
I haven't been archiving on this media personally (I still have
everything on a huge internal HDD), but do have some idea from forums
etc. http://www.luminous-landscape.com/tutorials/hd-back.shtml points
out that putting lables or writing on CD can cause the data to be
lost. There are
Mike Johnston addressesd the issue of CD quality just recently. Here is
a link: http://www.luminous-landscape.com/columns/sm-05-09-04.shtml
I have run into the same problem with some data files from work. A
couple of tips, good quality CDs do seem to help. Burn AT LEAST two CDs
and check them to
From: Brad Davis [EMAIL PROTECTED]
Someone must have a solution, must have found way to reduce the losses. The
only way I can see to reduce my losses is to write everything on my old HP
burner and make multiple copies - perhaps 4 copies each. That seems a bit
much as it reduces the effective
Ed Verkaik wrote:
From: Brad Davis [EMAIL PROTECTED]
Someone must have a solution, must have found way to reduce the losses. The
only way I can see to reduce my losses is to write everything on my old HP
burner and make multiple copies - perhaps 4 copies each. That seems a bit
much as it
Brad Davis [EMAIL PROTECTED] wrote:
[snip]
But, as I try to access older CD's, I consistently find files that I can't
open -
[snip]
I'm sure books have been written on this subject, but I'll put in my 2
cents:
You didn't say which 'name brands' you used. I would only use Mitsui Gold
CDRs.
wrote:
I mistakenly purchased a box of DVD+RW discs rather than the DVD+R
discs. I recall there was an issue with CD-RW media not being as durable
as CD-R media. How about rewriteable DVD media? Does the same difference
hold for DVD?
AIUI CD-RW media are actually slightly _more_ stable,
The view on RW media has flip flopped several times. I have always
believed the technology use din RW media is superior to that of the R
media., and some agree with me.
Here's how they differ:
R (write once) media has a dyes layer which is burned off by the laser
to crete on or off bits. The
Mike Brown wrote:
He was very honest in making clear that this was a projected value
based on
extended temperature, pressure humidity storage.
What else could he say??? well. we were actually finalizing this
technology back in the year 1899, and we've been secretly testing the
disks since
Laurie writes:
Don't you have this reversed? My understanding
is that JPEG is lossy while TIFF with LZW is
lossless.
Yes, I do, sorry. Fortunately, you understood what I meant, not what I
wrote. I was in a rush, as usual.
, 2002 4:05 PM
To: [EMAIL PROTECTED]
Subject: [filmscanners] Re: Archiving and when to sharpen(was:Color
spaces for differentpurposes)
Mac writes:
Contrary to what Anthony Atkielski wrote,
I have NEVER seen a LZW Tiff come out larger
than an uncompressed one, regardless of exact
pixel content
Another aspect of purposing, different for different destinations, is the
file format. I've had more than one publicist and publisher request that I
provide (email, ftp) a jpeg in preference to a tiff because of the file
size. (For this I use a
high/maximum quality in photoshop terms: 10 to
I have to wonder if the publicist and publisher are requesting jpeg
files rather than lwz compressed TIFF files out of force of habit ...
From one, file size was specifically mentioned. Others may be due to habit, or their
experience that once image goes through their prepress and screening
At 01:20 PM 6/9/02 -0500, Laurie Solomon wrote:
Although I concur with all you have said, I have to wonder if the publicist
and publisher are requesting jpeg files rather than lwz compressed TIFF
files out of force of habit, lack of knowledgabout the ability to compress
TIFFs using the lwz
Date sent: Sun, 09 Jun 2002 15:09:58 -0400
Send reply to: [EMAIL PROTECTED]
From: Johnny Johnson [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject:[filmscanners] Re: Archiving and when to sharpen (was:Color
spaces
At 05:32 PM 6/9/02 -0400, Mac wrote:
Wow, are you sure? The LZW TIFF was *larger*?
That's unusual.
Hi Mac,
Thanks for asking - it looks like the original TIFF file that I grabbed
must have already been saved with lwz compression. So, I did the
experiment again using a fresh scan of a
It's not that unusual, though I don't recall why, and LZW compression will
not reduce file size nearly as much as JPG
Maris
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, June 09, 2002 4:32 PM
Subject: [filmscanners] Re: Archiving and when to sharpen
yes; if there are many pixels of same color, image
will compress more.
And that is almost never true for real-world photographs, although it is
certainly true quite often for computer-generated images such as diagrams
and the like.
Wow, are you sure? The LZW TIFF was *larger*?
It can be if
Date sent: Sun, 9 Jun 2002 19:42:32 -0500
Send reply to: [EMAIL PROTECTED]
From: Maris V. Lidaka Sr. [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject:[filmscanners] Re: Archiving and when to sharpen (was:Color
spaces
operations.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Johnny Johnson
Sent: Sunday, June 09, 2002 2:10 PM
To: [EMAIL PROTECTED]
Subject: [filmscanners] Re: Archiving and when to sharpen (was:Color
spaces for differentpurposes)
At 01:20 PM 6/9/02
Date sent: Sun, 09 Jun 2002 18:59:45 -0400
Send reply to: [EMAIL PROTECTED]
From: Johnny Johnson [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject:[filmscanners] Re: Archiving and when to sharpen(was:Color
spaces
I have occasionally gotten JPEGs that were larger than the original,
uncompressed TIFF file if the file contained a lot of detail and had been
heavily sharpened, and the JPEG compression was set at maximum quality /
minimum compression. So it can happen, but in my personal experience only
rarely.
I use Creator 4.0. on a Plextor 8X drive without buffer underrun
protection. I had a rate of failures with version 3.5 and 4.0 both with
this drive of about 25% until I changed to brand name disks. Since then
I have had a ZERO failure rate.
I always shut down all programs in my task bar prior
-
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, May 03, 2002 02:55
Subject: [filmscanners] Re: Archiving to CD - is there a file sizelimit ?
i have a duel book on my laptop and an LS-4000. it's installed one operating
system and i was unable to install the software on the other system
On Thu, 02 May 2002 11:09:20 -0500 Charlie ([EMAIL PROTECTED]) wrote:
Should I be having difficulties with a 140MB file ? I am using
W2K and Easy CD Creator 4.
Easy CD is, IME, a steaming pile of zero-tolerance poo, and apt to churn
out coasters given the slightest glitch. Try Nero, or
My experience is ... no false reading or miss to read with : Kodak, TDK and
SKC (cheap but sure).
My experience.
Sincerely.
Ezio
www.lucenti.com e-photography site
ICQ: 139507382
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, January 24, 2002
PROTECTED]
Sent: January 23, 2002 7:59 PM
To: [EMAIL PROTECTED]
Subject: [filmscanners] Re: Archiving
The gold layer (it's not a coating, it's part of what the data
is burned
into - and also the most fragile part of the CD) - most of the gold cd's
seem pretty good - Kodak,
Just placed
If fire won't penetrate it -water won't either.
Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners'
or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body
They are reasonably resistant to water, but will delaminate over time (I
don't recall how long). If they have labels on, forget it. Also, any nasty
oils or solvents in the flood water will do their own damage. And, good to
store without any inserts in the case - saves having to deal with the
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