Overview If you looked at a standard audio CD you would not find wav or mp3 files but cda files. If you just copied these to the computer you would end up with a bunch of 1kb files and no audio.
A data CD would actually shows the files with the standard extensions such as mp3, wav, or whatever.
Solution
Use the Vegas import function to properly rip the audio tracks. If you have a lot of CDs to do, you can run multiple copies of Vegas to use the multiple drives on Xavier.