I am trying to figure out how much disc space my imovie slideshow is taking up before I export it to idvd. The last time I made a slideshow, I added transitions and music in imovie and when I sent it to idvd to burn I was told I would have to either make it a 90 min disc at a loss in quality or remove material to make it 60 min. I chose not to remove material and when I burned the disc the music I had added to the slideshow played past the point where I had added photos. It seems like I still had room for more photos. Is there a way to check the total size of your slideshow before burning??