I have my iTunes music and apps library on my macbook air, but the movies portion is stored on an external NAS drive. I can watch movies from the drive on the air without issue, but when I try to sync a movie to the iPad it just makes a folder on the iPad with a list of my library and does not copy the movie. Is there any way to make this work without having to have the movies stored on the macbook air or all of the library on the NAS. In other words with my current set up.