A MediaDescription data structure that includes both descriptive metadata, such as EPG information, about a multimedia content item and instructions for acquiring the content item is assigned to each multimedia content item in a multimedia system. A MediaDescription data structure is transferable as...http://www.google.com/patents/US7644103?utm_source=gb-gplus-sharePatent US7644103 - MediaDescription data structures for carrying descriptive content metadata and content acquisition data in multimedia systems
