Patent ID: 8121952
Filing Date: 2012-02-21
Classification: G06F

Abstract:
1. A method of producing pre-recorded multimedia content on a physical media, the method comprising: placing at least one media key block, a volume ID, and a unique key in the media key block on the physical media, and the unique key is a mathematical combination of the media key and the volume ID; placing the pre-recorded multimedia content on the physical media into a plurality of independently playable titles encrypted with one or more encryption content keys; placing at least one special file with addresses of web service providers on the physical media and the special files are cryptographically hashed with the encryption content keys; encrypting the encryption content keys with a first key derived from the media key block to produce encrypted encryption content keys; delivering a permission to decrypt at least one of the titles to a player of the physical media, and the permission including the encrypted encryption content keys; allowing a media player to perform each of the following