On 31 Oct 2001, R Pickett wrote:
> A straight digital copy of an AIFF or WAV, burned to CD, will sound
> worse than the original file? No. It will not. It will sound exactly
> the same. It's the same bits. If it sounds different, it's an artifact
> of the CD player, the sound card you're listening back through, or some
> other thing. But the sound data are _exactly_the_same_, definitionally.
Except it may not be. When your audio CD player encounters a read error
while getting a sector (150 sectors/second of audio, IIRC), then it will
either skip it altogether and play the next sector (assuming it is
error-free), or interpolate over the errored sector(s). If this happens
too often, then you will get clicks, or the player will start to try and
reread things (skipping).
On a Data CD, if there is an error while reading a sector (ie. the sector
data and the error-check data don't match up) your CD-ROM drive will try
to reread the sector. If it keeps on coming back with errors, it will
keep on rereading, rereading, rereading... so your AIFF file will stop
playing.
There is a huge wealth of CD spec information at Disctronics' website:
http://www.disctronics.co.uk/
(click on CD Technology)
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This archive was generated by hypermail 2.1.2 : Thu Nov 01 2001 - 10:02:58 EST