I was sold an iPod by a friend. Before he went overseas on active military duty he loaded it with movies, tv shows, videos. He sold it to me. I would like to download music and podcasts onto it; but, another friend told me that as soon as I hook it up to my computer, it will delete all of the movies on it. I want to keep the movies on it, assuming that is legal and ad podcasts and music. Is there a way to do this? Thanks in advance.