Optical information recording/reproduction device, and optical information recording/reproduction method
Provided are an optical information recording/reproduction device and an optical information recording/reproduction method with which retry data during verify error detection can be efficiently recorded. In the optical information recording/reproduction device for recording data on an optical information recording media and reproducing data from an optical information recording medium, if verify error data is detected at a first cure unit region on the optical information recording medium, verify error retry data is recorded at a second cure unit region which is different to the first cure unit region.
1. An optical information recording and reproducing method for recording data on optical information recording media and reproducing data from the optical information recording media, the optical information recording and reproducing method comprising the steps of:
storing data to be recorded on the optical information recording media into a storage unit;
dividing the data into a plurality of data strings and adding an error detection code to each data string;
executing precure on a first cure unit area of the optical information recording media as a preprocess for recording;
recording the data stored in the storage unit into the first cure unit area subjected to the precure;
executing postcure on the first cure unit area subjected to the data recording, as a postprocess for recording;
executing verify to determine whether data in the first cure unit area subjected to the postcure can be read out correctly using the error detection codes in the data in the first cure unit; and
responsive to detection of data causing a verify error in the first cure unit area by the verify, recording retry data for the verify error into a second cure unit area on the optical information recording media different from the first cure unit area,
wherein the retry data for the verify error is caused to cut in data to be recorded and is recorded in the second cure unit area,
wherein the retry data for the verify error is caused to cut in next data to be recorded and is recorded in the second cure unit area, and
wherein data on the storage unit that has caused a verify error is copied and pasted to be caused to cut in next data to be recorded, the next data to be recorded is shifted and moved by that amount, and the retry data for the verify error is recorded in the second cure unit area.
2. An optical information recording and reproducing method for recording data on optical information recording media and reproducing data from the optical information recording media, the optical information recording and reproducing method comprising the steps of:
storing data to be recorded on the optical information recording media into a storage unit; dividing the data into a plurality of data strings and adding an error detection code to each data string;
executing precure on a first cure unit area of the optical information recording media as a preprocess for recording;
recording the data stored in the storage unit into the first cure unit area subjected to the precure;
executing postcure on the first cure unit area subjected to the data recording, as a postprocess for recording;
executing verify to determine whether data in the first cure unit area subjected to the postcure can be read out correctly using the error detection codes in the data in the first cure unit; and
responsive to detection of data causing a verify error in the first cure unit area by the verify, recording retry data for the verify error into a second cure unit area on the optical information recording media different from the first cure unit area,
wherein the retry data for the verify error is caused to cut in data to be recorded and is recorded in the second cure unit area,
wherein the retry data for the verify error is caused to cut in next data to be recorded and is recorded in the second cure unit area, and
wherein an address of data on the storage unit that has caused a verity error is shifted to cause the data to cut in next data to be recorded in the first cure unit, an address of the next data to be recorded is shifted by that amount, data is read out based on the shifted address and recorded on the optical information recording media.
3. An optical information recording and reproducing method for recording data on optical information recording media and reproducing data from the optical information recording media, the optical information recording and reproducing method comprising the steps of:
storing data to be recorded on the optical information recording media into a storage unit;
executing precure on a first cure unit area of the optical information recording media as a preprocess for recording;
recording the data stored in the storage unit into the first cure unit area subjected to the precure;
executing postcure on the first cure unit area subjected to the data recording, as a postprocess for recording;
executing verify to determine whether data in the first cure unit area subjected to the postcure can be read out correctly; and
responsive to detection of data causing a verify error in the first cure unit area by the verify, recording retry data for the verify error into a second cure unit area on the optical information recording media different from the first cure unit area,
wherein the retry data for the verify error is recorded in a plurality of places in the second cure unit, and
wherein from among data recorded in the plurality of places, data in one place that has not caused a verify error is selected, and the selected data is registered as alternating data.