Help weird problem with my ps2

I got a problem with ma ps2 i can play any game i like on it except FIFa 2006 which is a arsehole cos dats what i brought FIFA 4 was 2 play it i tried it on ma mates PS2 and that works and i tried it on my old broken ps2 that takes half an hour to load and i works the problam with ma old ps2 is that it doesnt read the disc properly

HELP PLEASE!!!!

o p.s No hammers :P

damn, i was gonna recommend a hammer.

know that prob,

try to clean the laser
if that don't work, tja, try to change you copy
some disk are not 100% good written
Ore Put you PS2 UPSIDE DOWN, i know sounds crazy, but it works orso!