Does the output have to be HDMI or you won't get the HiRez channels with a Blu-Ray disk?
My OPPO BDP-103 manual states:
Due to bandwidth limitations, high resolution audio formats such as Dolby Digital Plus, Dolby
TrueHD, DTS-HD High Resolution and DTS-HD Master Audio cannot be sent through the
coaxial or optical digital audio output. A reduced resolution version of the same audio track
will be output instead. To listen to high resolution audio formats in their best quality, please
use the HDMI connection...
Wayne