The HD DVD format is DEAD! You can try to make a HD DVD file from DVDSP and play from your computer. There are NO HD DVD burners.
Your other alternative is Blu-Ray. Adobe Encore is the only application that can create a Blu-Ray disk.
If this is going to be an on going thing, I would suggest purchasing Adobe CS3 Production Premium which contains Adobe Encore.
Steve Eisen
Eisen Video Productions
Board of Directors
Chicago Final Cut Pro Users Group