Consoles have always used some form of protection to prevent games being imported and to try and prevent piracy. Every generation of console improves the protection, as the types of attacks that hackers use are better understood by the console manufacturers. For example, the Sega Mega Drive used a different shape of cartridge in Europe and America than in Japan. To circumvent this, European console owners had to take a hacksaw to the cartridge slot. The Super NES used this different cartridge shape but also put in some region protection. To bypass this an adapter was used into which the gamer put the Japanese game and a European game. The console started to load the European game and was then interrupted and the Japanese game was loaded. Flash forward to the modern consoles and the Xbox and GameCube lead the fight against piracy.
ok, ok, ok....i know this one gonna be delete soon i think. :o