An optical disk device capable of data recording. A tracking error signal
is generated from return light from an optical disk, and the tracking
error signal to which a tracking offset signal is further added is
supplied to a tracking servo circuit. A tracking offset signal in
accordance with the driving current when recording data is determined
based on the relationship between the driving current of the laser diode
and the optimum tracking offset. Tracking control is performed using a
fixed tracking offset signal when reproducing data and using a tracking
offset signal which is variable in accordance with the driving current
when recording data.