I have a dvd done on a stand alone player. It's really mucked up as is and I want to reauthor it. I joined and converted the vob files to mpeg2, but there is a lot of junk I need to edit out. I want to know how much of a quality loss will occur when I re-render the files? I converted from vob because I had audio sync issues with v6 when I dropped vobs directly on the time line.