I have the Toshiba HD-A2 connected via HDMI to the Onkyo 605.
When buying the 605, my O.C.D. wanted to see "Dolby TrueHD" on the receiver (just like standard DVDs display "Dolby D" when the receiver recognizes the DD signal).
As I half-expected, I played the Superman Returns HD-DVD, selected TrueHD, and the screen showed "Multi PCM 5.1" and NOT "Dolby TrueHD".
From what I've gathered, that is because the A2 cannot output a TrueHD bitstream, but can send it as multichannel PCM.
I guess my question is: will the XA2 (or any other player for that matter) be able to output a TrueHD bitstream so the receiver will recognize it and display "Dolby TrueHD"?