Patent ID: 8151359

Claim:
Method for managing proprietary data in a content distribution system having access control according to a predefined data access format, the system comprising at least one studio for providing content data and related proprietary data, a record carrier for carrying the content data and related proprietary data, a rendering device for rendering the content data and related proprietary data from the record carrier, and at least one application for manipulating the content data and related proprietary data,which method comprises the steps of setting an access policy for the studio according to the predefined data access format, the access policy comprising access parameters for controlling access to said content data and related proprietary data, providing at least one studio application complying with the access policy of the respective studio for accessing said data, providing, on the record carrier, content data and related proprietary data according to the access policy of the respective studio, for enabling the rendering device to execute the at least one studio application, establishing a virtual entity by the at least one studio, setting a cross studio access policy for the virtual entity according to the predefined data access format, which cross studio access policy sets access parameters for controlling access to content data and related proprietary data that a specific studio allows to be shared for cross studio applications, wherein the virtual entity is configured to allow cross-studio applications to be created and certified for sharing data across studios and operates in accordance with the cross studio access policy, providing at least part of the proprietary data according to the cross studio access policy of the virtual entity, providing at least one cross studio application complying with the cross studio access policy of the virtual entity for accessing said proprietary data, executing the at least one cross studio application by the rendering device for accessing said at least part of the proprietary data for a plurality of studios.