people are going to laugh there arse's off here but do you have and under arm deoderant and and earbud if not ask the mrs you smelly sod
dissasemble the ps2 and remove the laser housing lid the rest is pretty self explained spray the ear bud use one end to clean the lense and a dry one or the other clean end to dry it.
use toothpaste on any mark's on the disc keep rubbing and wiping until they dissapear the simple ide's are the best and WORK i use them.
underarm deoderant contains methyl a quick evaporating liquid.
tooth paste will remove the deepest scratch plenty of elbow grease needed the disc will look like NEW toothpaste is a fine grade abrasive and the reason it leaves your teeth smooth and free of plaque laugh all you want it works
"Light travels faster than sound. This is why some people appear bright until you hear them speak"