I have never ever had a problem with iTunes, and then I had to upgrade to 8 to use the iTunes store and oh my lord there was nothing about 8 I liked.

So I'm back to using 7, which is joy and love, but I lost my library and playlists. :/ And I figured I might as well use this opportunity to not have my music spread amongst 3 harddrives and a gazillion folders, so I still don't have my complete library yet.