DVDs are by definition SD.
You can burn a HD media file to a DVD disk for file-based playback,
but it will not play in a DVD player.
And, Premiere Elements has a different Forum:
As Joe points out:
This is the PrPro Forum, and I will Move your post to the very active PrE Forum.
There is no such thing as an HD DVD, per se. The specs. only allow for SD content. Once, there was a proposal for HD DVD, but that was years ago, and Sony won the battle with BD.
[Moved to PrE Forum]
For a complete breakdown on the DVD-Video specs, this Tips & Tricks article has several useful links: http://forums.adobe.com/message/2525832#2525832
Hope that helps explain what can be, and cannot be in a DVD-Video.
The following online article may be helpful in sorting out what you referred to as HD DVD.
According to the article HD DVD was discontinued in 2008. Note that the available disc capacity for this HD DVD started at 13.9 GB. Lots of interesting information in the article on Blu-ray Disc, AVCHD and HD DVD.
In response to your question
How do I make a HD DVD (4.7 Gb) disk - NOT AVCHD or Blu Ray? This would be to play in "older" DVD players.
I would ask "What are the specifications of these older DVD players with regard to supported disc types and supported formats on the supported disc types?" Also could you confirm what you want to put on the disc. I get the impression that it is not DVD-VIDEO (720 x 480 - standard or standard widescreen or the PAL counterpart.)
I do not have one of these HD DVD discs?