| 摘要 |
<p>A recordable-optical disk recording/reproducing apparatus. The recordable-optical disk has a management data area where data on an inherent physical characteristic and data on linear recording density are recorded and a data recording area where record data is recorded. A rotation drive unit drives the rotation of the optical display and has a speed sensor for determining the rotational speed of the optical disk. A temperature sensor measures the ambient temperature of the optical disk. A control unit calculates the most suitable power of the laser beam applied to the optical disk from data on the inherent physical characteristic read from a head unit, data on the linear recording density, determined data determined by the speed sensor, and measured data measured by the temperature sensor and controls the head unit according to the result of the calculation.</p> |
