A door apparatus for causing a pair of doors in a front panel to be opened and closed so that a tray for holding a disc can move into and out of the disc drive. The door apparatus comprises a first door and a second door pivotally located near the front panel. A first lever and a second lever rotate on a hinge shaft and intersect each other such that a distal end of each lever is in contact with a side of the first door and the second door, respectively. A guide bar located on a side of the tray slides between the proximal ends of the first lever and the second lever when the tray moves. The guide bar is inserted between the first lever and the second lever, and causes the distal ends of the first lever and the second lever to separate and to thereby open the doors.