Information recording/reproduction processing device, method, and computer program

An information recording and reproduction processing apparatus that executes data recording and reproduction processing, comprising:

• storing means for data recording;
• a recording control process execution unit that generates reproduction management information including at least data recording end position information and executes data recording control for the storing means;
• and
• a reproduction control process execution unit that executes reproduction control processing for data, which is read out from the storing means, on the basis of the reproduction management information, characterized in that
• the recording control process execution unit has a constitution for, in the case of data recording processing, executing processing for generating reproduction synchronization management information indicating that recording processing for data is in progress and recording management information having link information of the reproduction synchronization management information and storing the generated reproduction synchronization management information and recording management information in storing means, and
• executing retrieval processing for recording management information at the time of system startup, extracting and erasing reproduction synchronization management information on the basis of link information of extracted recording management information, and executing erasing processing for the extracted recording management information, and
• the reproduction control process execution unit is constituted to, in the case of data reproduction processing, extract reproduction management information corresponding to reproduction data, execute retrieval processing for reproduction synchronization management information based upon the reproduction management information, judge whether data is being recorded on the basis of presence or absence of reproduction synchronization management information, and execute data reproduction control according to a result of the judgment.

An information recording processing method for executing data recording processing, characterized by comprising:

• a reproduction synchronization management information generation step of, in the case of data recording processing, generating reproduction synchronization management information indicating that recording processing for data is in progress;
• an association processing step of associating the reproduction synchronization management information to the reproduction management information;
• and
• a reproduction synchronization management information recording step of executing processing for recording the reproduction synchronization management information in a directory that is automatically erased at the time of system startup or at the time of system shutdown.

An information recording processing method for executing data recording processing, characterized by comprising:

• a management information generation step of, in the case of data recording processing, generating reproduction synchronization management information indicating that recording processing for data is in progress and recording management information having link information of the reproduction synchronization management information;
• a management information recording processing step of storing the generated reproduction synchronization management information and recording management information in storing means;
• and
• a management information erasing step of, at the time of system start up, executing retrieval processing for recording management information, extracting and erasing reproduction synchronization management information on the basis of link information of extracted recording management information, and executing erasing processing for the extracted recording management information.

An information reproduction processing method for executing data reproduction processing, characterized by comprising:

• a reproduction management information extraction step of, in the case of data reproduction processing, extracting reproduction management information corresponding to reproduction data;
• a reproduction synchronization management information retrieval step of executing retrieval processing for reproduction synchronization management information that can be identified uniquely from extracted reproduction management information;
• and
• a reproduction control step of executing reproduction control for data being recorded or reproduction control processing for data not being recorded.

A computer program for executing data recording processing, characterized by comprising:

• a reproduction synchronization management information generation step of, in the case of data recording processing, generating reproduction synchronization management information indicating that recording processing for data is in progress;
• an association processing step of associating the reproduction synchronization management information to the reproduction management information;
• and
• a reproduction synchronization management information recording step of executing processing for recording the reproduction synchronization management information in a directory that is automatically erased at the time of system startup or at the time of system shutdown.

A computer program for executing data recording processing, characterized by comprising:

• a management information generation step of, in the case of data recording processing, generating reproduction synchronization management information indicating that recording processing for data is in progress and recording management information having link information of the reproduction synchronization management information;
• a management information recording processing step of storing the generated reproduction synchronization management information and recording management information in storing means;
• and
• a management information erasing step of, at the time of system start up, executing retrieval processing for recording management information, extracting and erasing reproduction synchronization management information on the basis of link information of extracted recording management information, and executing erasing processing for the extracted recording management information.

A computer program for executing data reproduction processing, characterized by comprising:

• a reproduction management information extraction step of, in the case of data reproduction processing, extracting reproduction management information corresponding to reproduction data;
• a reproduction synchronization management information retrieval step of executing retrieval processing for reproduction synchronization management information that can be identified uniquely from extracted reproduction management information;
• and
• a reproduction control step of executing reproduction control for data being recorded or reproduction control processing for data not being recorded on the basis of presence or absence of the reproduction synchronization management information.