step 1 buy him a new laser. if that doesnt work, extract the drive keys from his disc drive - using a flasher tool ( sorry cant remember its name) SAVE THE KEYS, buy a new drive, flash his keys to it and problem solved. cheaper picking up a 2nd hand one these days tho. the reason your drive on his machine wouldnt play the games is because of the keys - each console has its own keys married to its drive. at best your drive on his machine would play dvds