It will work but depends on the audio input/processing of the Mac and the output capabilities of the player.
If your Mac has a multichannel analog input (5.1 via 6 RCA analog inputs), get a player that has the comparable outputs (like one of the Oppos), then you can get the HD audio that way while the HDMI video goes to the TV.
If not, you will be forced to use the S/PDIF digital audio link and that will preclude getting HD audio, although you can get multichannel.
The only possible crimp, and this is unpredictable, is that there may be a lack of exact synch between audio and video.
Kal
If your Mac has a multichannel analog input (5.1 via 6 RCA analog inputs), get a player that has the comparable outputs (like one of the Oppos), then you can get the HD audio that way while the HDMI video goes to the TV.
If not, you will be forced to use the S/PDIF digital audio link and that will preclude getting HD audio, although you can get multichannel.
The only possible crimp, and this is unpredictable, is that there may be a lack of exact synch between audio and video.
Kal