Afternoon all- I am completely stumped on this one. Last night I go to play a .mp3 from my library collection. I double click the song, Windows Media Player opens up and the track actually play is the last 3 mins of the previous song in the directory. I go through my 400gb library and come to find out, about 75% of the library is corrupt in this same sort of fashion. The played is either the track before or of a completely different artist. I don't know when this occured which is an interesting indicator of how often I actually visit my local library for music now a days but I certainly don't want to lose it either. To complicate this matter, I and checking my backup of the library but I have a hunch that these files will also be corrupt as the source during backup would have been corrupts as well. I don't know how the corruption could be so clean as to be of by 3/4 of a track.. or play at all. I was hit by a trojan last spring which I cleaned up fine enough. However, I don't think that it's related. I think it's more likely some partition work I tackled last spring that might have corrupted the whole thing. I just don't see how the header tags could all be off. Could this be a MFT issue? I just don't really know how to solve this problem, what have caused this or potential fixes before I drop the entire collection and become a Spotify user for life. Any suggestions? Ever see this? Win7 64 bit Occurs on any music player of choice (WM, Real Audio, iTunes, Winamp etc) Has impact 3/4 of the folder structures.... the other 25% seem to all be correct and pointing to the correct track of music. Looking for suggestions to try- Thanks Benjamin.