I have a japanise 20gig ps3 which bought in 2006 whilst i was in japan. Today i connected a friends UK PAL ps3 to my system via HDMI ( I have a sony DA820 amp connected to a 7.1 setup) and i noticed the sound was inferior to my PS3. The difference wasnt massive but their was a difference. Is their a difference in the spec of a japanise PS3 and a PAL PS3