OK. I'm officially throughly confused with DTS and their advanced audio codecs. I thought DTS HD was the 'core' of DTS HD MA. Anyway, I watched Basic Instinct on BD last week, and my receiver decoded it as DTS Discrete, so perhaps it was just the 'core'. So, you're saying that DTS HD isn't the 'core' of DTS HD MA?
Man, we need about 12 more audio codecs, this just isn't confusing enough.

Edited to add:
Well, it does indeed look like DTS HD Master Audio and DTS HD High Resolution are two different HD advanced audio codes (lossless and lossy respectively).

From the above chart, it is reasonable to assume that the 'core' for both of these is the 1.5mb DTS Digital Surround 96/24. So, with that, I ammend my prior comment that the Pioneer Elite BDP-HD1 can decode DTS HD High Resolution. I don't know if it can or not, but I suspect madkaw is correct in that it cannot. I would also venture to say that no other current BD player can decode it either.