I'm trying to make a copy of the PS-x change 2 and i can't

[Kendomon]

It's whats known as a pressed track, when the disk is made the security or un-copiable track is pressed on the disk instead of written with a laser making it uncopable. It's the reason you need a mod-chip to play a copied playstation game and why you probably made some very good copies that will only work if your system is modded.