| 摘要 |
PURPOSE:To always from a mark of a proper size on a recording medium regardless of the ambient temperatures, the variance of recording sensitivity of the recording medium, etc., by using an optimum recording condition detecting and setting means to perform the trial recording and reproducing actions. CONSTITUTION:A processor 35 functions as an optimum recording condition detecting and setting means which performs the trial recording a reproducing actions for respective block 13... of an optical disk 11 and detects and sets the optimum recording conditions for the energy value of the light beam. When a state detecting means 36 detects the fear of change of the optimum recording conditions, the processor 35 serves as a control means which performs the control to detect and sets the new optimum recording conditions when the information data is recorded and erased at first to respective block 13.... Thus a mark of a proper size is always formed on a recording medium regardless of the ambient temperatures, the variance of recording sensitivity of the recording medium, etc. |
