Re: MD: Digital protection ???

2000-10-11 Thread Simon Gardner


I have been reading about this copy protection  would like to no if I wass
to record a mix off the radio and put the track markers in etc could I then
copy ot to another MD digitally and keep the markers like when you record
from a cd? I know I can't make copys from the copy.

If you're recording in analogue, then the MD will be "11" or SCMS 
restricted (ie. you can take a further copy). A subsequent digital copy of 
that MD will be "10" or SCMS prohibited (ie. you can't record another copy 
from it).

Short version: yes, it'll work from MD1 (radio-MD) to MD2 (MD-MD) and 
keep the trackmarks.

If the above works could I also record from A LP2 md (My unit suports it) to
standard stereo and keep markers etc.

Not sure but I'd assume that's the case as the LP players 
wouldn't/shouldn't do SCMS any differently.

hth,

-- 
Simon

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Re: MD: Digital protection ???

2000-10-11 Thread David W. Tamkin


Simon Gardner wrote,

| If you're recording in analogue, then the MD will be "11" or SCMS 
| restricted (ie. you can take a further copy). A subsequent digital copy of 
| that MD will be "10" or SCMS prohibited (ie. you can't record another copy 
| from it).

Simon, you read the DAT-Heads FAQ, didn't you?

Those numeric designations are for DAT.  MD uses the complements: 00 is
restricted, 01 is prohibited, and 11 and 10 are unrestricted.

CD is different yet: there is only one copy-protection bit per frame, and all
ones mean unrestricted, all zeroes mean prohibited (I may have those two re-
versed), and alternating ones and zeroes mean restricted.

Because the actual bit representations are different for different media,
I prefer the terms "SCMS-unlimited" for the settings that permit repeated
generations of recopying, "SCMS-penultimate" for that which allows only one
further generation, and "SCMS-final" for the uncopyable setting.

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