I was able to get digital audio and hdmi working fine no problems.
As posted and confirmed in the thread, analog audio and digital was a no go.
Carl
It looks like you've made the right decision.
According to the following tests
Panasonic DP-UB820 UHD Player Review the ub820 has sub par performance over the analogue stereo outs.
I'm glad I kept the 900 for its ability to play stereo analogue well because it has a better separate dac dedicated to the analogue section that is of a higher quality. So I can continue to enjoy my hi res blu discs via headphones unencumbered by the 48khz downsampling imposed via the spdif circuit.
I think I did notice an inferior sonic performance over analogue stereo when I first got the 820 and assumed it was merely a case of it being new and as yet not burned in.
This fellow also examined the 9000 and found its analogue stereo performance to be very good
Panasonic DP-UB9000 UHD Player Review
On balance, I think the extra outlay for the 9000 to achieve the better analogue stereo would be justifiable if making a first purchase upgrade from something much cheaper. As a dac and cd transport to upgrade a standalone cd player and uhd player in one go, this would be a no brainer.
As it stands, I think I've convinced myself that I have a decent hi res analogue player in the 900 with a great av hdmi setup in the 820. I can use the spdif to the headphone dac/amp from the 820 and get decent stereo or mono performance whilst watching it.
(for serious hi res dsd listening, the pc wired to the pre amp via ethernet is superior - even the 900 is vastly inferior)
I also have the the 820's to my preamp through the spdif in the tv in pcm and so gain decent stereo audio over the stereo speakers or via headphones that way, even for dolby or dts encoded 2 channel material, without having to mess with any settings in the 820.
I do that regularly when watching older movies in stereo/mono rather than go through the av amp.
All bases covered then. No longer coveting the 9000 :0)