I have a problem. I have a 45 min video made in iMovie, that I want to burn in iDVD. However, when i export everything to iDVD, make my menu and click burn, it starts preparing everything and when it is about to burn, my Mac ejects my DVD around 7 minutes remaining and keeps going as if it were burning. I've already tried several times, changing different disks, even putting the disc back in as soon as iDVD ejects it. It freezes at one minute remaining and have to cancel the burning process. DVDs are not even burnt or anything, they remain virgin even after iDVD "says" it's burning to then eject it around the 7 minute mark.