Jonathan,

I think this option is to create HD DVDs that play back on an HD DVD player or XBox 360 HD DVD drive (the external drive), not standard DVD drives. I've created a couple of discs this way and they play back fine on my HD DVD player but not on a normal DVD player.

The DVD format does not support resolutions greater than 720x576. You can put higher resolution files on a recordable DVD but they will only be readable in a PC drive as a video file, not as a DVD.

HTH,

Ian