An optical disk apparatus that records data on an optical disk whose linear velocity
is not constant. The optical disk apparatus includes an optical pickup that irradiates
a laser beam of a recording power on the optical disk, converts light reflected
from the optical disk into an electric signal; a detector that detects a level
of the reflected light signal; and a controller that controls a recording power
such that the reflected light signal level matches a target value set according
to the linear velocity. When adjusting the recording power such that the reflected
light level matches the target value, the target value is not set to a constant
level, but set in accordance with the linear velocity. Target values at different
linear velocities differ and, with this configuration, an appropriate target value
is set and an appropriate recording power corresponding to the linear velocity
is obtained.
