Sony officially states that PlayStation 4 will not have DRM against used games

[RazorDragon]

Max King of the Wild said:

Otakumegane said:

Problem being PS4's might be fully integratd on to the system hardware itself (by disk readers) while the online pass is a software issue.

See unlike ms drm there is absolutely no reason to believe what you are saying. There is no evidence to support those claims. We know ps4 wont require online. How do you expect sony to unlock used games or get the fees without a connection 

Actually, there are evidences. The RFID chip patent made by Sony is a big one, and it would work without internet connection to block used games.