only half movie burns onto DVD

DD

Guest

I’m using vso copytodvd for my video movie onto dvd. Problem is when I play back the dvd, the movie looks good, but it has only burned half the first half of the video. I’m not getting any errors during the burning process. The video is 82mb and I’m using 4.7gb, 120min, DVD+RW discs. Why is only half my movie there? Thanks for any info.