Abstract: Rotary table of an optical disk reproducing apparatus is mounted on a tray for rotation in a clockwise or counterclockwise direction, and it has a plurality of disk-holding depressed portions. These depressed portions are provided in such a manner that their respective centers are located at equal intervals on and along a predetermined imaginary circle line defined about a rotation center of the rotary table. Protruding elements are provided between every adjacent pair of the depressed portions, and each of the protruding elements has an upper surface that is located above the lower surface of an optical disk left adhering to a disk damper but below the lower surface of the disk damper in a non-clamping position.

Abstract: As a front panel of a disk changer apparatus is moved to an open position, a disk rack moving in response to the movement of the front panel operates to hold a plurality of disks in a staggered configuration. Such a staggered configuration of the disks allows a user to easily pick up and take out any desired disk from the disk rack.

Abstract: Rotary table of an optical disk reproducing apparatus is mounted on a tray for rotation in a clockwise or counterclockwise direction, and it has a plurality of disk-holding depressed portions. These depressed portions are provided in such a manner that their respective centers are located at equal intervals on and along a predetermined imaginary circle line defined about a rotation center of the rotary table. Protruding elements are provided between every adjacent pair of the depressed portions, and each of the protruding elements has an upper surface that is located above the lower surface of an optical disk left adhering to a disk damper but below the lower surface of the disk damper in a non-clamping position.

Abstract: To eject a transfer tray while no disc is played, the transfer tray is moved to an ejected position with a rotary table rotated through an angle corresponding to 1/10 revolution, so that even the rearmost disc holding portion on the rotary table sufficiently projects or is exposed out of a body of the device. This permits simultaneous disc replacement for the disc holding portions. To eject the transfer tray during playing of a disc, the transfer tray is moved to the ejected position without the rotary table being rotated, so that the rearmost disc holding portion on the rotary table does not sufficiently project out of the body of the device, permitting disc replacement only for the other disc holding portions than the rearmost disc holding portion.