I spent 45 minutes chatting with a roku tech earlier today before reading all of this. She tried to tell me that the reason that I stopped getting DD was because of my AVR. After that, I searched and found this thread, which has helped me understand. I have an ultra 4640X hooked up to an AVR that is compatible with DD and not DD+. It’s hooked up via HDMI. I have 3 questions that I hope you knowledgeable users out there can answer.
1. The loss of DD+ to DD transcoding, is that something that roku is trying to fix?
2. Does the optical connection still do the DD+ to DD change?
3. Can I connect the roku to my AVR using both HDMI and optical?
Thanks to all of you.
1. I would expect that Roku will fix the DD+ to DD transcoding in the next software update. Hopefully an update will be issued sooner rather than later.
2. My Roku Ultra can transcode DD+ to DD over optical, but if there's anyone who's unable to do this they could chime in.
3. In my setup, I can connect my Roku Ultra to my AVR using both HDMI and optical. I can adjust settings on my Yamaha RX-V371 AVR to associate the optical audio input with the HDMI input. Also, in the Roku menu, I have to go to: (Settings > Audio > HDMI and S/PDIF) and set it to: (Dolby D) or (Dolby D, DTS) . If I don't configure it this way, the Roku will output stereo PCM over the optical output (My AVR is DD+ capable, so if you have an AVR that's only DD capable, you may not have to adjust this setting).
However, it might be easier to just connect the Roku's HDMI output to your TV (and then connect the TV to the AVR via HDMI) depending on what your exact AV setup is.