there has been alot of talk about hdmi vs. rgb and optical. main argument being, hdmi is digital to digital, no conversion needed (which is actually not true) as rgb is digital to analog back to digital. i assume we all know what the i's and p's mean with lines of resolution etc etc. i have done some research, just to brush over the conclusion and factors accordingly. it is proven that 50% of the time hdmi is better, the other 50 rgb is better... im sure theres already a tech section about this on myps3 somewhere, if not i will gladly share with all what i have come across, tested, am using and what ive found out doing all of this