Is it possible to master a DVD with 720HD high-definition video?

No, there is simply no way to encode HD resolution video onto a DVD. This is a common misconception. The DVD video format does not support HD resolution. DVD players cannot reproduce 720HD video.

If you want HD on a disk, that is what Blu-ray disks and Blu-ray console players are for.

There was once a format called HD-DVD, but it is no longer supported by anybody and standard DVD players will not play back an HD-DVD at the intended resolution.

720HD is 1280 x 720 pixels per frame.

The highest resolution that the DVD format can support is 720 x 480 pixels per frame for NTSC (or 720 x 576 pixels per frame for PAL), which is at best only 37.5% of the resolution of 720HD.

RE: ".. Just bought DVD-Creator from the App store; big disappointment. Took an uncompressed 11 minute QuickTime 720HD 6.2GB file down to a 721MB VIDEO_TS when it burned the DVD. In other words, it chucked 88% of the info and looks lousy. Unacceptable."

You can't get HD quality output to a DVD, but DVD can do much better quality output for an 11 minute clip than what you experienced.

I would suggest that you try re-encoding again with DVD-Creator, and this time pay attention to the output quality settings, since it sounds like you set up the output quality limit to maximum of 1 CD (at 721 MB output).

If you change your settings to allow output of DVD 4.2 GB (single sided DVD), you will find a massive improvement in your burned DVD video quality.

If you are still having issues with the output quality, try using the free HandBrake video encoder instead.

Hope this helps.