Well, I did mean this would be done for every track, not just the first
one on a CD.
> But a hash of the first few bars of
> each song on the CD should do the trick.
But it wouldn't since every MP3 converter, for example, would produce
a different .mp3 and that in turn when decoded would produce a different
raw file. That's why some sound analysis would have to be done to
properly classify a random .mp3, .wav, .au, or the raw input from a
CD, which itself could be corrupted slightly without an audible
indication.
Paul