An optical disc apparatus according to the present invention is equipped
with a disc rotation mechanism for placing and rotating a disc, a
plurality of optical heads for emitting light beams for recording and/or
reproducing data on the optical disc, a transport unit including a guide
structure for guiding the optical heads to be radially transportable on
the disc, an optical head transport mechanism for transporting the
optical heads along the guide structure, and a transport base for
supporting the disc rotation mechanism, the guide structure and the
optical head transport mechanism, an optical head storing portion having
a plurality of storage support guides for supporting and storing each of
the plurality of optical heads, and an optical head insertion and removal
mechanism for transporting each of the optical heads from the optical
head storing portion to the transport unit or from the transport unit to
the optical head storing portion, and each optical head stored in the
optical head storing portion is transported to the transport unit by
linearly moving from a position at which it is stored.