A door interlock unit to be used with a disk recording/reproducing
apparatus having a disk tray and a door through which the disk tray moves
in and out of the disk recording/reproducing apparatus, the door
interlock unit including a restricting member to restrict the door from
being opened in response to the disk tray being positioned inside the
disk recording/reproducing apparatus, wherein the restricting member is
engaged by the disk tray entering the disk recording/reproducing
apparatus; and/or a restricting member to restrict the disk tray from
moving toward a disk loading position in the disk recording/reproducing
apparatus in response to the door being in an open position; wherein the
restricting member is coupled to the door so as to be engaged and
disengaged by the door opening and closing, respectively.