RECORDING MEDIUM, OPTICAL DISK APPARATUS, AND RECORDING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a recording device capable of recording a mark having a suitable shape while successively changing a recording speed, and to provide a recording medium which can be recorded using the recording device.

SOLUTION: When recording parameters at a plurality of recording velocities to one recording medium are determined, the recording parameters are determined so that time control information on at least the front edge and the rear edge of a parameter forming a mark of twice size or above of the laser spot diameter focused on the recording medium is nearly proportional to the recording linear velocity. In such a case, the mark of twice size or above of the laser spot diameter focused on the recording medium is recorded and reproduced at a predetermined linear velocity to obtain an electric signal waveform having a time width Tm. A parameter is determined so as to control the laser pulse for recording information so that a voltage value change amount at two points at a distance Ts (TsCOPYRIGHT: (C)2005,JPO&NCIPI