Re: [ARSCLIST] What type of file are music CD's saved as

[Mike Richter <mrichter@xxxxxxx>]

At 10:06 AM 4/22/2004 -0400, Steven C. Barr wrote:

> Then is it the bits (pits and lands) on the CD surface that represent the
> ones and zeros after being processed by an algorithm so that sequences of
> either can be compressed? Thus, reprocessing the ones and zeroes with the
> same algorithm creates the .wav file?
> (decimal:)                           (0)       (63)     (255)    (252)
> Thus, if the waveform in digital is 00000000 00111111 11111111 11111100...
> the actual bits on the CD surface represent the lengths of those strings
> of ones and strings of zeroes rather than the bits that compose the
> digitized
> waveform themselves...right?
> Steven C. Barr

Sorry, Steven. It's much more complicated than that.

The error rate on a CD is very much higher than that on a hard drive or any
other common digital device. As a result, there is a complex relationship
between a group of bits on the disc and the bits representing the current
value. There is a page in the primer at my WWW site - one *not* written by
me, I assure you - on the actual coding used.
  http://www.mrichter.com/cdr/primer/bits.htm


Mike
--
mrichter@xxxxxxx
http://www.mrichter.com/