Found out that the set up disc must be the problem. I've run bluray discs in both Dolby TrueHD and DTS-MA HD and no problems. Even the LFE signal is fine (though just a bit hot, I need to fix that yet) on that material. I'd originally set up the 970's input as coaxial and used the remote to toggle to 7.1 external, but I prefer letting the Oppo do the decoding vs. the 970 on DVD's too as I only have a 5.1 setup, so I've changed that. Works wonderfully so far.

John