Hello, I have a Blu Ray player that has an optical audio port. I have a Sony TV with HDMI ARC. So I have two ways to send the audio to my stereo receiver, either HDMI ARC or optical. So I would be using PCM stereo format for the audio, which option would have the best bandwidth or speed to deliver higher quality audio? I have read in the internet about HDMI ARC and optical audio cable bandwith, but it does seem realistic.