Dutch website PS3-Sense claims that "a reliable source" has told them that all future PS3 game discs will contain a unique serial code that players will have to input into the system prior to launch. The source also claims that a similar system already exists on Sony’s PlayStation Network. The code will also make it so that a game can only be used on five different systems. This would serve as a way to keep a game from being resold more than five times, the Dutch site posits.
Naturally, Sony is not commenting on this story. PC gamers are very familiar with serial codes. They are now second nature to anyone that has bought a PC game in the last ten years. They have also proven to be ineffective in doing anything other than inconveniencing gamers.
Still, this is just another rumor about what methods Sony is using to combat the leak of the system's root key. Another recent rumor was that Sony had enabled some sort of backdoor method to execute code on systems that were jail broken. That rumor has yet to be proven true. We will keep our eyes peeled for expert testimony from the hacking community or official word from Sony confirming that these rumors are true. The latter is unlikely.