I'm trying to put my copy of Iron Man 3 on my iPad for the plane ride tomorrow with handbrake and having quite a bit of trouble. I read on another website to use the DVD player built into OSX and play the disk and see which Title it is under while playing. I went to "Go" then "Title" and its under 46. When I try to open it in handbrake under Title specific and type 46 it says "No valid source found." Any ideas?