Tynan Muddle at Aussie-Gamer.com writes: "While usually unpopular to certain groups of gamers, region locking on a video game console can actually be a good thing.
A region lock on a video game console is any method the manufacturer uses to prevent international games playing on local system. This can be done on either the software or the hardware level and is usually a permanent feature once the console ships.
Region locking is not a new phenomenon, nor is is assigned exclusively to video games. DVD players, BluRay players and even printers have region lockout chips built into them, preventing international use outside the country they were purchased in."