Since the price of the XBox is so low ($149 refurb at ebgames), I figure I might as well get it as my main DVD player to go with my Onkyo HT-S760. How good is the quality of the XBox surround sound with the Advanced AV Pack? Will the Advanced AV Pack be able to play true 6.1 on capable DVDs? Is the Xbox dvd quality just as good? Is there a Universal remote that will control the XBox thru the dongle? Sorry for all the questions, thanks.