Optical information recording and reproducing apparatus, optical information recording and reproducing method, and data library apparatus

An optical information recording and reproducing method for recording data onto optical information recording media and reproducing data from the optical information recording media, the optical information recording and reproducing method comprising the steps of:

• executing precure on the optical information recording media as a preprocess for recording;
• recording data on an area subjected to the precure, in order;
• executing postcure on the optical information recording media as a postprocess for recording;
• detecting a verify error in the recorded data;
• and
• requesting a host computer to retransfer data which has caused a verify error when the verify error is detected,
• data which has caused a verify error being intruded in a next scheduled recording quantity unit and recorded on the optical information recording media.

An optical information recording and reproducing apparatus for recording data onto optical information recording media and reproducing data from the optical information recording media, the optical information recording and reproducing apparatus comprising:

• a storage unit for temporarily storing data to be recorded onto the optical information recording media;
• a cure unit for conducting precure on the optical information recording media as a preprocess for recording and conducting postcure on the optical information recording media as a postprocess for recording;
• a recording unit for recording data stored in the storage unit onto an area subjected to the precure, in order;
• a verify unit for ascertaining a recording quality of the recorded data;
• and
• a data request unit for requesting a host computer to retransfer data which has caused a verify error when the verify error is detected,
• the recording unit and the verify unit being independent from each other, and consequently the recording unit and the verify unit being capable of simultaneously executing the recording and ascertaining,
• precure being conducted by the cure unit, data being recorded in a pertinent place by the recording unit, and postcure being conducted by the cure unit, and
• upon detection of a verify error by the verify unit, the host computer being requested to retransfer data which has caused a verify error by the data request unit, received data being intruded in a next scheduled recording quantity unit and stored in the storage unit and being recorded onto the optical information recording media by the recording unit.

A data library apparatus comprising a plurality of optical information recording and reproducing apparatuses and their control unit,

• each of the optical information recording and reproducing apparatuses comprising:
• a storage unit for storing data to be recorded onto optical information recording media;
• a cure unit for executing precure on the optical information recording media as a preprocess for recording and executing postcure on the optical information recording media as a postprocess for recording;
• a recording unit for recording data sent from the control unit onto an area subjected to the precure;
• and
• a reproducing unit for reading out recorded data and sending the data read out to the control unit, and
• the control unit comprising:
• a storage unit for storing data to be recorded on the optical information recording media;
• and
• a signal processing unit for conducting error correction and error correction code addition,
• whether data recorded onto the optical information recording media are correct being ascertained by the signal processing unit in the control unit.