| 摘要 |
<p>ID codes are given individually to each information carrier reproducing apparatus. Each information carrier (1) has a subsidiary storing area (18,3,17) for recording reproduction-management-information (RMI) and ID codes can be registered in this area. When the ID code of a reproducing apparatus is registered, that reproducing apparatus becomes permitted to reproduce main information from the information carrier. When the reproducing apparatus of which the ID code is not registered tries to reproduce the main information from the information carrier, the ID code of the reproducing apparatus itself is registered in the RMI of the information carrier and the main information is not reproduced.</p> |
