Hi, I've recently discovered a serious issue with my iTunes library. iTunes for some unknown reason has decieded to start over writing the contents of one song with the contents of another. Example - Yesterday I was listening to "Black Crows Amorica" Track 4 - Cursed Diamond. When the song starts its at the instrumental end of something I can't quite detect. Then, after about 30 seconds the audio fades out (still playing the song) and all of a sudden it fades into the beginning of "Crazy" by Aerosmith. All the while itunes (or my ipod/iphone) says its playing the original song, Cursed Diamond. This problem is happening all over my library, with seemingly no rhyme or reason to the madness. I've opened a bunch of the problem tracks in both audacity and Garageband to look at the actual audio - and sure enough, its been changed. Its happening on songs I know played fine at one point, and now, somehow, have been changed. I've been searching all day trying to find a solution/answer to the problem, or even someone else who has experienced it - with no luck. mac os x, most recent version of everything. Any thoughts/suggestions??