IM CONFUSED! help, some succesful and some not

:sad: hi im in desperate help and im realy getting frustrated beacuse ive made succesful copys of san andreas and worms 4 mayhem on the ps2.
but ive tried to backup tekkan5, mortal kombat deception and budokai 3 but they all seem to crash during the loading of the game, i was wondering if it could be something to do with the dvd-r’s i use (gigatain 4.7gb 4x)

im using alcohol 120%

please give me some advise

try read and write at 4x and im sure you know but select your datatype to PS2