I was reading Maximum PC magazine today and they have a spec comparision between HD-DVD and Blu-ray. It looks like their video specs are the same.
This is what it said on the chart (I can't find a link to the article)
HD -dvd MPEG-2, MPEG-4, H.264
Blu-ray MPEG-2, MPEG-4, H.264
But on the...