[disclaimer]I have never experienced surround sound, so in all likelihood I don't know what I am talking about here.[/disclaimer]

Of course you know what you are talking about, Doug. I have not listened to any music in AC3 either, and in the days of quadrophonia didn't have equipment. The theory goes, as I understand, that the back channels are supposed to bring, apart from dinosaur roar, whatever sound is actually comming from the back of the actual venue (i.e. echo). How well it works and whether it really adds to fidelity, I don't know.

Dragi "Bonzi" Raos
Zagreb, Croatia
Q#5196, MkII#80000376, 18GB green
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Dragi "Bonzi" Raos Q#5196 MkII #080000376, 18GB green MkIIa #040103247, 60GB blue