The present invention provides a device and method for an optical disc
such as a DVD which can keep proper edge position of a recording pulse to
record data of high quality without depending on a fluctuation in a
supply voltage and a fluctuation in a temperature. The optical disc
device according to the present invention comprises a laser driver for
driving a laser to record data on an optical disc, a recording pulse
generator for generating a recording pulse signal by using a
predetermined delay circuit, to control the switching of the laser power
of the laser driver, a delay amount measuring section for measuring the
delay amount of a delay circuit in the recording pulse generator, and a
recording pulse position correction section for correcting the
predetermined edge position of the recording pulse based on the result of
the measurement.