1. Is it possible to detect if an audio CD has been sourced from MP3s? Meaning, are there any utilities that can tell whether or not a CD has been made by decompressing MP3s into wavs and burning them. I would think no, but maybe there's some app that does this. 2. More importantly, is there a utility or app that will read a CD to make sure it, um, works. I do alot of live CD trading on the web. Sometimes the trades involve multiple titles and I can't listen to them all right away. Then a week or two later, I'll find that part of the disc is unreadable. Is there any way to verify the disc quickly without listening to the whole thing? Like an app that looks for bad sectors? Y'all are good at finding utilities and applications that do these types of things, so I figured I might ask. Thanks!