The PS3 will play SACD cd's on its release. However looking at the PS3 spec I'm unsure as to how it will output SACD. To my knowledge most players use either 5.1 analogue or i.Link. Now the PS3 does not have either but it does have USB, HDMI and optical (though as far as I know optical does not output SACD). So, what does the PS3 use? Any ideas?