Soul Reaver LOK problem

[Bobster]

I bought a copy of this game like 12 months ago (PAL Australian version) and I want to make a copy of it, I know its protected so I got the paradox UK PAL patch off megagames and tried to apply it and got a size mismatch i.e. the patch is not 4 this version of the game. So then I tried copying it with clonecd but this didn't work. My question is why would the PAL UK version of this game differ from the PAL Australian version - I have never encountered this in a psx game b4. Any response would be greatly appreciated!