I transferred a 2.5 hour movie from VHS to mp4 format. I created a new project for it in iMovie, edited it, and am trying to share it with iDVD. Because it is so large i am using a dual layer DVD+R. I set my iDVD preferences to Professional Quality and dual layer DVD. iDVD has been encoding the mp4 file for almost 24 hours. I understand that Professional Quality takes longer, but is this normal? If not would someone please explain what I should do to transfer the mp4 file to DVD. Thanks for any help you can offer!