Original Games don't work?

[Poomba]

I don't know what sort of chip I have but all I know is I rented Crash Banicoot and I can't get it to work....the chip is internal and I use Memory Manager Plus to play backup games, it's an NTSC PS2, but I live in australia and Crash is PAL, it plays PAL backups fine, is there something I can do, or am I just never gonna be able to play original games???!!!???!!! Please Help!