The potential problem occurs with the new HD audio formats that may be available with HD-DVD or BD discs. These formats cannot be passed through the digital audio coax or digital audio optical connectors but can only be passed through a HDMI connection to a the destination device being able to properly decode that signal.
Wow! Being new to the hi-def world, this came as a surprise. I just spent the time and $$$ to set up my new Samsung 40" 1080p TV, Rogers HD digital box, and HTPC with S/PDIF feeds to the sound system. Two use optical, and one coax.
Now I find out that these connections can not support the new audio formats. Ouch!
However, I am confused about something.
By the sound of it, you require
an HDMI connection to carry the new audio formats. OK, I get that.
The HDMI cable also carries video. In my case, two devices (HTPC and cable box) are connected to the TV with HDMI, for video only in this case. OK so far.
There have been other discussions about having a TV receive an audio signal and pass it on to a sound system. The description of current technology indicates that this won't happen. The TV's on sale today will not pass through an audio signal.
My confusion is - how do you get the audio to a sound system? You have to use an HDMI cable for both audio and video, which must be plugged into the TV, but the TV won't pass the audio signal on.