Recording medium device, terminal device, distribution device, control method, and program recording medium

A terminal device for using contents stored in a recording medium device connected to the terminal device, the contents including a special content, the terminal device comprising:

• a device identifying information output unit configured to output device identifying information to the recording medium device, the device identifying information identifying the terminal device;
• an attribute acquisition unit configured to acquire an attribute of a content from the recording medium device;
• a content identifying information extracting unit configured to extract content identifying information from the acquired attribute when the content identifying information is contained in the acquired attribute, the content identifying information being information distinguishing the special content from regular contents;
• a content identifying information output unit configured to output the content identifying information to the recording medium device;
• a usage information acquisition unit configured to acquire usage information necessary for using the special content and having been generated by the recording medium device by using the content identifying information;
• and
• a usage unit configured to use the special content by using the usage information necessary for using the special content, wherein
• the recording medium device is configured to determine whether terminal devices are allowed or restricted to use the contents thereon by using revocation information recorded thereon, the revocation information including a first region indicating one or more terminal devices restricted from using any of the contents and a second region indicating device identifying information of each of one or more terminal devices restricted from using the special content, and
• the usage information acquisition unit acquires the information necessary for using the special content when the content identifying information output unit has output the content identifying information to the recording medium device and the recording medium device determines that the terminal device is not restricted from using the special content by comparing the second region of the revocation information with the device identifying information.

A control method used in a terminal device using contents stored in a recording medium device connected to the terminal device, the contents including a special content, the control method comprising:

• outputting device identifying information to the recording medium device, the device identifying information identifying the terminal device;
• acquiring an attribute of a content from the recording medium device;
• extracting content identifying information from the acquired attribute when the content identifying information is contained in the acquired attribute, the content identifying information being information distinguishing the special content from regular contents;
• outputting the content identifying information to the recording medium device;
• acquiring usage information necessary for using the special content and having been generated by the recording medium device by using the content identifying information;
• and
• using the special content by using the usage information necessary for using the special content, wherein
• the recording medium device is configured to determine whether terminal devices are allowed or restricted to use the contents thereon by using revocation information recorded thereon, the revocation information including a first region indicating one or more terminal devices restricted from using any of the contents and a second region indicating device identifying information of each of one or more terminal devices restricted from using the special content, and
• the terminal device acquires the information necessary for using the special content when the terminal device has output the content identifying information and the recording medium device determines that the terminal device is not restricted from using the special content by comparing the second region of the revocation information with the device identifying information.

A non-transitory computer readable recording medium storing a control program to be executed by a terminal device using contents stored in a recording medium device connected to the terminal device, the contents including a special content, the control program causing the terminal device to perform the steps of:

• outputting device identifying information to the recording medium device, the device identifying information identifying the terminal device;
• acquiring an attribute of a content from the recording medium device;
• extracting content identifying information from the acquired attribute when the content identifying information is contained in the acquired attribute, the content identifying information being information distinguishing the special content from regular contents;
• outputting the content identifying information to the recording medium device;
• acquiring usage information necessary for using the special content and having been generated by the recording medium device by using the content identifying information;
• and
• using the special content by using the usage information necessary for using the special content, wherein
• the recording medium device is configured to determine whether terminal devices are allowed or restricted to use the contents thereon by using revocation information recorded thereon, the revocation information including a first region indicating one or more terminal devices restricted from using any of the contents and a second region indicating device identifying information of each of one or more terminal devices restricted from using the special content, and
• the terminal device acquires the information necessary for using the special content when the terminal device has output the content identifying information and the recording medium device determines that the terminal device is not restricted from using the special content by comparing the second region of the revocation information with the device identifying information.