News

The 4C Entity, LLC is pleased to announce that CPRM Specification, SD Memory Card Book, SD-SD Video Part, Revision 0.91 is now available. The new revision includes the treatment of the Digital Stream Usage newly defined in SD-SD Video version 1.1. More...

The 4C Entity, LLC is pleased to announce that CPRM Specification, SD Memory Card Book, SD-SD Part, Revision 0.91 is now available. The new revision incorporates usage rules based on date and time, both of which were previously supported in the 4C Specification material for CPRM for SD-Audio revision 0.97. The rules require three types of clock function modalities to define previewing and recording rules for devices.

Click here for more information about revisions to 4C specifications and license agreement and prior announcements

DEVELOPERS RESOURCES

4C Entity has licensed and coordinated with numerous industry-leading content providers, service providers, solution providers, application developers, and hardware manufacturers to offer the best digital media solutions. Multimedia applications enabled by 4C technologies are creating vast new market opportunities for content providers, service providers, application developers and device manufacturers.

The CPRM/CPPM specification was designed to meet the robustness and renewability requirements of content owners while balancing the implementation needs of both the consumer electronics and PC industries. By using 4C Entity technology solutions and specifications, device manufacturers can offer consumers a wide range of choice for sharing premium content among digital devices while reducing long development times and resources. Licensing CPRM/CPPM provides you with the ability to use the latest technology while having backward compatibility.

*Includes procedures for handling device keys, MKBs and secret constants