As I understand it, Match scans the audio file and gets the fingerprint to match it to iTunes database. Most of my songs wound up fine, but for some reason I'm winding up with entire artists or albums that are indeed in the iTunes Store but aren't matched. All of my albums by Enya, Garth Brooks, the three Lord of the Rings soundtracks, a Jimi Hendrix album, and the list goes on. Would I help if I re-ripped these albums? Is there something better in the newer iTunes from when I ripped them years ago that might help it to match better?