I hadn't really thought of the audio on the Blu-ray concerts, but it makes sense they should sound equal to SACD and DVD-A with the uncompressed audio formats.

One question about SACD playback: For discs that contain CD and SACD, does the BDP-83 output SACD via its 7.1 analog if the audio setup has the preference set to play the CD portion of the disc? In other words, do I need to change the BDP-83 setup and specify SACD playback to turn on the full array of 7.1 analog outputs? I have set up an Activity on my Harmony One to play SACD/DVD-A discs but it just uses the 990's 7.1 input but it doesn't change the BDP-83's setup.