A new patent application by Sony, if developed into a real-world product, will make it impossible for game discs to be sold, shared, or traded, by tying each disc to a console or user account. The patented technology works by embedding an RFID tag in the disc, which a reader in the console can log against a user ID. "When the game is to be played, the reproduction device conveys the disk ID and a player ID to the use permission tag," which then determines whether it is permissible for the game to run.
Diagrams included with the patent application show "temporary use information," showing that the system can be built to permit limited use of a disc, even if flagged. "The number of temporary uses is within the limits?" reads one of the checks.
This is just a patent application, and may never make it into the real world. Therefore, we're not getting irritated about the erosion of rights ... yet.