The HD621 is a game changer in my system for all the same reasons already expressed. I especially like the M Comm HDMI integration between HD621, 861v4, Oppo BD 83, DirecTV HR 21 Pro and MSR: One touch source selection.

It upconverts to MHR and eliminates at least one level of DAC conversion. Multiple HDMI inputs. I'm only using two. My 800v4 HDMI video output is direct to Sony SXRD, MHR via three 861 SPDIF connections.

DVD A to my ears is better from the 800 than the BD 83/HD621. SACD by Oppo doesn't sound as good as M DVD A, but I don't have many SACD selections. I've reported several video only drop outs.

This week I tried power cyclying the Oppo rather than rebooting the system and the video came back immediately.

Thanks to everyone for the v1.05 "beta testing."

Tim