For video I'm connecting via HDMI straight to my projector display.
For sound, I'm using optical from the XA2 to my AVR (Harman Kardon 435). In the XA2 audio menu, I set Digital Out SPDIF Bitstream, Digital Out HDMI Auto.
I watched the Eagles HD DVD with no problem. Sound was indicated as DTS on the receiver's display panel.
However, I could not get any sound from Superman Returns HD DVD. The receiver's display panel showed DTS, but the speaker icons were flashing (meaning there was no detectable audio signal). I then went into the sound setting menu of the movie, tried both Dolby 5.1 and Dolby TrueHD, no go.
Any idea on what's causing the problem?