I feel really dumb. I did a little experimenting. I found a Blu Ray with a DTS-HD High Resolution track and sure enough my receiver displayed it. I always thought that the core was a subset of DTS-HD High Resolution and DTS-HD High Resolution was a subset of DTS-HD Master Audio. No. My BDP can only play DTS from a DTS-HD Master Audio disc.

Everything Club Neon said was true.

M3 and
M80