For 7.1 Audio Whats Better Hdmi Or Optical???

[Zaphod]

It is true, all 7 discrete channels cannot be transmitted via bitstream over an optical connection. However Pro-Logic IIx adds post-processing to 5.1 channel and stereo signals, creating a realistic 7.1 channel surround environment from 5.1 channel movies and stereo sources. Also 6.1 can be used with Dolby Digital EX, which adds the 6th channel, also the 6th mono channel can be transmitted to the 7th speaker as well. However true 7.1, meaning 7 discrete channels cannot be sent over optical.