It’s possible that I am overlooking something, as I’ve never actually rendered a video yet. There is a noticeable difference, however, between opening the video in 4.0 and 6.0. I haven’t burnt it to a DVD yet. I’m still just previewing the video in the preview window of vegas. What settings should I be using if I plan to burn it to a dvd? (i.e. aspect ratio etc.) Is that the problem? thanks!