Patent ID: 6853609

Claim:
An optical disk apparatus comprising: an optical pickup for emitting a laser to an optical disk as a recording medium and outputting a detection signal according to a reflected light from the optical disk; an optical disk type determination means for determining a type of the optical disk based on the detection signal; a focus servo control means for performing a control so as to make a convergence state of the laser emitted toward the optical disk constant, on the basis of a focus error signal which is obtained from the detection signal; a tracking servo control means for performing a control so that a convergence position of the optical laser is always located on a track of the optical disk, on the basis of a tracking error signal which is obtained from the detection signal; a gain adjusting means for performing loop gain adjustment of the focus servo control means and the tracking servo control means; and a driving signal outputting means for outputting a driving signal to control the optical pickup, on the basis of the focus error signal and the tracking error signal, wherein at start of the apparatus or mounting of the optical disk, when the type of the optical disk is determined by the optical disk type determination means to be a recordable optical disk, the optical pickup is made seek a previously set area, thereby performing loop gain adjustment.