An apparatus for recording and reproducing an information signal on and from
an
optical disc includes a memory. The information signal is written into the memory.
The information signal is read out from the memory. An optical head generates a
laser beam in response to the readout information signal, and applies the laser
beam to the optical disc to record the readout information signal on the optical
disc. A test signal is recorded on a position of the optical disc near a recording
position thereof via the optical head during the writing of the information signal
into the memory. The test signal is reproduced from the optical disc. The reproduced
test signal is evaluated to generate an evaluation result. An intensity of the
laser beam is optimized in response to the evaluation result.