Mike,
Thanks for the offer. But I ended up just going out & picking it up last night. Watched it all the way through in DTS ES and it played with no problem.
Watched the first 5 or so minutes in DD. Still, no problem.
It must just be something with the Firmware of the DV-37. As far as I'm aware the DV-37 is a unique machine. It's not really an upgrade of a standard Pioneer. Nor is it really a newer model of a specific player. It's much different than the DV-05 that it replaced. And it's replacement, the DV-45A is totally different as well.
I think you really ought to take Pioneer up on their 3 year Firmware warranty and see if that fixes your DV-37 problem.