I have a large number of 16:9 format DV movies to convert to DVD and just purchased V4. I'm not sure whether to choose any custom settings when I pick the MPEG-2 setting for rendering. On the custom/ video tab, there is an aspect ratio setting -- but even if I choose 16:9, the DVD Architect program indicates that it has to reoptimize the project when I burn to DVD. I'm trying to avoid the reoptimization to keep quality high. I placed the quality slider on 31. What's the best "recipe" for dealing with 16:9 ?? Thank-you for your assitance !