Hi John,
If you back up.wavs to either cd or dvd as a data disc, you are
bascially just transfering the same information thats on your drive to
a removeable format. The .wav is still a wav whether its on a harddrive
or a data disc.
As long as you save it as data in Toast or whatever, the file will
remain the same.
Cheers,
D.Slevin