Only trouble with a DTS-HD stream is that you cannot author this to a DVD.
Only Blu Ray, HD DVD or eventually a desktop software player can decode them.
Ditto Dolby True HD.
These are HD formats.
What - IMHO - should be on these titles is as follows:
MLP Lossless
DTS 96/24
DD 24/48
WMA in the ROM folder
Oh - wait a minute, we can do this already. It's called DVD-Audio.