I'm having problems converting HD to DVD. I capture free over the air HD mpegs and use "Tmpgenc 4.0 xpress" for the conversion. The problem is this, Either the video is some what herky jerky or there are jagged edges. I'd like to convert the High Def mpegs to a 16x9 format. I use Nero to burn it to DVD. I don't have these problems with non-high definition mpegs.