| 摘要 |
<p>Provided is a configuration for making a secure data management for later data corresponding to a contents management unit. In this configuration, later data retrieval information and access control information are set when the later data such as information created later or downloaded by a user in relation to the contents stored in an information recording media is to be recorded in a hard disk or the like. This configuration makes it possible to retrieve a later data file based on the later data retrieval information, to acquire the later data, and to make individual access controls of later data files based on the access control information. In the configuration, moreover, the retrieval information and the access control information are set in a common directory such as a studio-shared directory, too.</p> |
