Patent ID: 7791998

Claim:
An information recording apparatus comprising: a recording unit which irradiates a laser light on an information recording medium to record data thereon; a determination unit which stops recording by the recording unit at a time when predetermined amount of data is recorded during actual data recording and determines whether or not recording quality of recorded data is within an appropriate range based on reproduction data obtained by reproducing the recorded data; a correction unit which corrects a recording power of the recording unit so that the recording quality becomes within the appropriate range, when it is determined that the recording quality is out of the appropriate range; and a test writing unit which obtains (i) a special OPC strategy which prescribes a waveform of the laser light used for calculating the optimum recording power of the laser light at a time of recording of the information at a second recording speed, which second recording speed is different from a first recording speed, at the first recording speed, and (ii) a recording strategy which prescribes the waveform of the laser light used for recording the information at the second recording speed, and executes test writing by using the special OPC strategy at the first recording speed to calculate the optimum recording power; wherein the actual data recording starts with the optimum recording power determined by the test writing, wherein the test writing unit obtains a relation between a recording quality evaluation parameter and a recording power by the test writing using the special OPC write strategy of the waveform of the laser light used for calculating the optimum recording power of the laser light at the time of recording of the information at the second recording speed different from the first recording speed at the first recording speed, and wherein the correction unit corrects the recording power based on the relation between the recording quality evaluation parameter and the recording power.