dvd drive region is a hardware thing on pretty much any remotely recent drive... you can look and see if a RPC-1 firmware (which is either a hacked firmware or an australian firmware) option exists for your drive...
[insert the usual you'll void your warranty and you might brick the drive warnings here]
if such a firmware doesn't exist for your drive it's almost guaranteed a cheap drive exists that can be flashed with RPC-1 firmware
[insert the usual you'll void your warranty and you might brick the drive warnings here]
if such a firmware doesn't exist for your drive it's almost guaranteed a cheap drive exists that can be flashed with RPC-1 firmware
eat right, exercise, die anyway