I am trying to unistall itunes and reinstall it because a genius at the Apple store suggested that I do so because I may have had a corrupted file somewhere on my mac in the itunes files. I have deleted everything I can find in all of the itunes folders and reinstalled itunes. But when I go to open up my freshly installed itunes and look through to make sure there are no lingering items in there I see that there are still some old back up files in the syncing tab. I know I can just delete them from there, but does anyone know where they are stored on my mac?