Digital content distribution is extremely popular. Most content producers desire some sort of rights management, and so content distribution systems typically include content management systems that control aspects of playback, copying, or other usage of the digital content. As one example, a device in the content distribution chain may be configured to enforce terms of a license provided by a content producer or other authority. The license is stored as one or more computer-accessible files or other data structures accessed by the device to enable (or deny) access or other use of the content.