I'm SURE this must have been asked before, sorry. But you see, I want to create a playlist in iTunes that consists of every track on my iPod. I always manually manage my iPods and never create playlists for them to sync from or anything. But now I want to start doing that and start off by transferring all my songs from my iPod to a playlist in iTunes. However, I'd prefer not to overwrite the same songs that are already in iTunes...impossible?