3.2.5.1 Local Storage and Acquiring Content and Licenses
The device MUST maintain persistent content and DRM Data Stores. For more information, see section 3.2.1.1.
Licenses MUST be stored on either a permanent DRM Data Store or in the same temporary DRM Data Store as the corresponding content. Licenses SHOULD always be kept in the same temporary DRM Data Store as the corresponding content. Each individual content license MUST be bound to the device certificate of the device. Copied licenses MUST NOT be considered valid.