A couple of things I've noted about the new DV-981HD:
On the Product Comparison
page, in the "Video D/A Converting:" row, the entry for the older OPDV971H model says "108MHz/12bit Video DAC
". But the same entry for the DV-981HD says "Not available
I thought they both had the same exact video processing hardware. How could there be no Video DAC in the DV-981HD?
Also, what version of the HDMI spec does the DV-981HD support? (I suspect it's only HDMI 1.1.)
Based on my reading of the new features of HDMI 1.3, buying something that doesn't yet support that version of the interface seems almost foolish to me at this point. (He said, speaking as someone who bought into the HD game back in the brief "DVI era", using 1080i, DVI and Digital Audio outs and thinking he was "future-proofing" his setup. Har-de-har-har!)
One other thing that was news to me - if you play DVD-Audio or SACD discs, apparently there is no output on either of the Digital Audio ports (coax or optical), due to lack of HDCP on them. You can only play back these discs if you use the 5.1 analogue outputs or via HDMI into an HDMI (and thus HDCP) compliant receiver. (Just what I always wanted, to add 6 more cables to the back of my setup just to get analogue output from digital audio formats. No wonder DVD-A and SACD were stillborn!)