I've downloaded some podcasts from iTunes U but I wasn't subscribed to the podcast at the time so they ended up in folders under my playlists. The movie files themselves are in Music/iTunes/Movies, so now I've subscribed to the podcasts and don't want to download all the episodes again. They are over 500Mb each. So I have one downloaded via the subscribed podcast which created the proper directory in Music/iTunes/iTunes Music/Podcasts and copied the other movies over but iTunes isn't seeing them and wants to download them all again. Is there anyway to get iTunes to recognise the files in the podcasts section?