This one has me baffled...these are the only other threads on MacRumors discussing the same issue: http://forums.macrumors.com/showthread.php?t=52864 http://forums.macrumors.com/showthread.php?t=89055 ...but there have been no responses as to how to fix the problem. In short, I waited for one of my songs to finish, but as it finished, the -5555 error dialog box came up, and my song didn't show up anywhere in iTunes. That includes doing the Check for Purchased Music menu item function, as it just says that all purchased music has been downloaded. I try to redownload the song from the music store, and it says that the song is already purchased and that a redownload would cost, so I cancelled the redownload. I went through my Hard Drive and Trash folder and didn't come up with the song. Apple has no information on their site that I've found that has helped me. How does one go about getting that song out of iTunes?