The only option for 5.1 sound on the X-Box is the Joytech AV cable. It costs £15. At this price quality is expected, yes? Well, its crap! It works OK with the X-Box, but when I switched to my CD player (or any other analogue source) it causes MASSIVE buzzing because its shielding is so crap - everytime I play a CD I have to unplug it. That is crap build quality for £15! Doesn't matter how far away you put it, there is buzzing.