Patent ID: 8422676

Claim:
A method comprising: supplying a cryptographic code for playing a first video in a first video playing device, where said supplying is done in a first source remote from said first video playing device, where at least part of said first video cannot be viewed properly without said cryptographic code, said supplying comprising, accessing a master key which provides cryptographic codes for said first video, where said master key has a limited number of uses to make other keys to play said first video, determining if said master key still has uses left to make said other keys, and if so, creating said cryptographic code that can only be used on said first video playing device, and supplying said cryptographic code to said first video playing device, where said cryptographic code is keyed to, and only usable with, said first video playing device that is playing the video, and where said cryptographic code is not usable on any other player other than said first video playing device.