The Audiophile wavs are 'studio' quality. The Everything tracks have been compressed - thus theoretically have lost some quality in the compression. It is a long term discussion whether most people can hear the difference. If you are one who swears to be able to hear the difference in an original CD and one which has been compressed to MP3 or WMA, you should get the Audiophile version. This is especially true if you will be making CDs from your tracks. If using only for performance, the compressed tracks are more than adequate.

R