I am using Windows Movie Maker. I am not dropping frames. Playback on my computer and a DVD that I burned, is grainier (slightly blurry) Not a good digital quality picture.
I'm no expert .. but .. the one time that I tried
Window's Movie Media software, it would render to
CD (not DVD quality) video, which is very poor
(but it renders really quickly!)
I've tried the movie making software bundled
with my Sony video camera with the same results.
I have been using Pinnacle Studio which one can
render to fairly high quality DVD.