Hi. I have used Vegas 9 since its release and prior to that Vegas 8. Have never come accross this problem before. I have downloaded into Vegas 9 about 2.5 hrs of video from my handycam and successfully edited it all. I then burnt it to DVD and everything looks fine except for the very last event that includes the finale by the chorus. All members of the chorus are "bobbing". I went back to the pre-renderd file and sure enough the "bobbing" affect was there. I went back to the event and played it on wmp and no sign of the "bobbing". I went back to the handycam and the vision on the LCD did not have this "bobbing" affect. The bobbing only appeared once I had dumped the event on to Vegas 9. Incidently, there were other items, (duet and compere) in this last event and that vision was not subject to this bobbing .... only the chorus. Also maybe worth noting that there were several events prior to this in the video that included the chorus without the bobbing affect. I am at total loss here. Appreciate it if anyone can help. Cheers.