I have less than 3 hours to get this figured out....I have a purchased movie in iTunes that I am trying to write to a DVD. The movie is in .m4v format. When I burned the first DVD, I went to test it in my DVD player and it wouldnt play. When I hit play, it comes up with 2 boxes that flash on screen and then stops. I'm trying to burn another, but I need help. Does anyone know why this is happening? Is there another format I need? As of now I am just dragging and dropping the .m4v file into my blank DVD and it appears to copy and burn, but wont play. Can someone help please??