Patent ID: 8103799

Claim:
A system for delivery of multimedia services comprising: at least two regional servers, each coupled to a high-speed network backbone carrying content, the at least two regional servers including a first regional server and a second regional server which each provide a second level of caching for content received from the high-speed network backbone, the first regional server configured to customize content received from the high-speed network backbone to form a first version of multicast content and the second regional server configured to customize content received from the high-speed network backbone to form a second version of multicast content; at least one regional subscription server coupled to at least one of the first and second regional servers, the regional subscription server adapted to track services subscribed to by end-user systems; and a plurality of caching servers, including a first caching server coupled to the first regional server and a second caching server coupled to the second regional server, each caching server configured to provide a first level of caching of content for an end user system in a region served by the regional server to which it is coupled, and to provide the customized multicast content formed by the coupled regional server to the end-user system.