I love this program. Spent over 20 hours editing on Studio 8 and it was all WASTED................I finally had to scrap all my hard work and start over. So I switched to what I thought would be the harder program (Vegas), but boy was I wrong. My one hour movie/slide show rendered and copied to DVD perfectly (using DVDA). It was perfect. Now I want to know the best way to correct a small mistake and add a short video..................do I need to re-render the whole thing? What are the steps I need to take?