Ok I am using my G5 dual 2 with the 4x dvd burner to burn a DVD. This is my second time to burn one and everytime on the stage 4 asset encoding burn stage it says insert a blank DVD. I have inserted 3 new ones to no avail. What gives? My DVD has 3 movies on it no longer than 10 minutes each and a photo slideshow that is like 5 minutes. Any ideas, are all of my dvds bad, iDVD bug? Please help and thank you.