I did a work on DRM during my master degree. It's somewhat true, it's called Broadcast Encryption. They can stop your players ability to read new disks. They ca

I did a work on DRM during my master degree. It's somewhat true, it's called Broadcast Encryption. They can stop your players ability to read new disks. They can't stop existing ones though, unless the disk requires online component or something. DRM stands for Digital Rights Management, but I call it Digital Restrictions Management cause that's what it is from users point of view.