dd an audio cd on 5.x ?

[Chuck Swiger]

Ion-Mihai Tetcu wrote:
> On Tuesday 08 July 2003 22:55, Lowell Gilbert wrote:
[ ... ]
>> That command will copy a data disk, but you have separate
>> tracks on this thing.
> 
> Ok. And if I want to copy bit by bit ?

You'd have to obtain the glass master used to press the original to get an 
absolutely exact copy.  "bit-by-bit" accuracy of the raw CD is not very easy or 
even desirable to obtain due to ECC hardware fixing minor errors: for audio, you 
want a "bit-by-bit" accurate copy of the data after ECC processing, not before.

Better CD-burners let you do something known as DAO+96 ot TAO+96, which lets you 
override the ECC hardware when reading or writing, and thus copy even the errors 
from the original, which can be useful for copy-protected data CD's rather than 
for audio....

-- 
-Chuck