Sony vegas 10 HD. My computer is new, 6 gig ram. Have made 10 movies, all about 3.5 to 4.1 gig, burned about 80 dvd, no problems. One movie 4.3 gig will not burn, it never finishes the rending process, tried it 4 times, it stops rending at differant points on the time line. Have burned 20 other dvd with differant movies after that movie failed so the problem is with that movie.. I get an error message which I set to Sony. I did encounter one problem while making the movie, I copied a media generator and pasted it at a differant point on the time line, I had some problems with the movie play button after that, the movie would't play when you pressed the play button.. I actually went and deleted all ( about 15) of the media generators in the time line. Created new ones and the video played using the play button.I still have the problem