Yes, I've tried VLC, Quicktime/Itunes, GOM player and Winamp as well as Foobar 2K. There was no issues before the switch, then immediately after the installation when I opened some songs they were scrambled. I'm pretty sure its the same on other PCs - could you confirm that though? Link...
While upgrading to windows 7, a large portion my music collection got all messed up. The first few seconds of a song are switched with parts of another songs. Sound files from a game (CIV4) are mixed in too, its not just music from my library. Right now I have several hundred screwed up songs...