The quality of the WAV file will depend on the program used to rip the CD. The one regarded by live concert traders to be the best is Exact Audio Copy, also called EAC. And it happens to be a freebie, though the author does have a "wish list" of items from Amazon that he'd be happy to get from anyone who can afford to compensate him for his efforts. For info go to
http://www.exactaudiocopy.de/
I did compare WAV's from a few different rippers a few years ago, and EAC was the best.