[vorbis] Copy protected CDs (off-topic)

Dan Hollis goemon at anime.net
Wed Dec 20 11:35:24 PST 2000



On Wed, 20 Dec 2000, Gregory Maxwell wrote:
> Best bet is that they clock themselves from the media and CD-Rs clocking
> output is very jittery. This will cause their output DAC to jitter around
> 44.1k rather then playing exactly at it.

No CD players *EVER* clock themselves from the media.

> Even decks which have their own clock and fifo, the jitter buffering may not
> be sufficient, or the jittered signal could potentially leak through due to
> poor electronics design and modulate the output of the internal quartz
> oscillator.

Not likely.

Most likely, the CD-R is marginally readable in that particular player,
and the CD player is having to compensate for missing samples by using
interpolation and other means.

-Dan

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