[PJones]

There were rumours the PS3 would use single use discs that locked themselves to a particular PS3 before it launched.

http://www.joystiq.com/2005/11/08/playstation-3-wont-play-us...

[pandaman]

By "similar" I meant a reputable entity being confident. Edge has reputation to care about and inside sources as well so this rumor is very different from a random blogger's speculation.