Our 17 YEAR OLD Onkyo (yes, that's not a typo), displays the Dolby D on the menu once the audio connection is made but then reverts back to the input type (DVD, SAT). I don't recall if there was a way to check this in the menu.
If i were to change the audio DSP in real time, moving from the range of Direct, Stereo, Theatre, Stadium, ...etc. eventually you come back around to the Dolby D again before it again reverts to the input type on the OSD.
I'm wondering if Onkyo has made a change over time and removed this quick show of the codec display.
