Region free NEC 3540A DVD drive..?



Hi there,
I’ve just bought an NEC 3540A DVD drive for my PowerMac G4 and I forgot about DVD regions! As I’ve just finished 2 hours of scouring the net (this is how I found this site) and becoming rather confused, can anyone tell me if the drive comes region free? If not, what must I do to make it so on Mac OS X…?
Any help and advice would be greatly appreciated as I’m a newbie to this!