A multi-disk player has a magazine 1 having a plurality of trays 12 stacked in a case 13 one above the other on each of which a disk 11 is to be respectively mounted, a magazine containing portion 2 where the magazine 1 is inserted and pulled out, a recording and/or playing portion 3 arranged to be aligned with the magazine containing portion 2 in a direction where the magazine is inserted and pulled out, an elevator mechanism 4 which adjusts relative up-and-down locations of the recording and/or playing portion 3 and a tray 12, and a loading mechanism 6 which reciprocates the selected disk between the magazine 1 contained in the magazine containing portion 2 and the recording and/or playing portion 3. The loading mechanism 6 has a hook 61 which engages with a engaging portion 12a of a selected tray 12 in the magazine 1 contained in the magazine containing portion 2, a driving means for movements between a locking position and a shunting position for selectively moving the hook 61 to the locking position in which the hook 61 engages with the engaging portion 12a of the tray 12 or to the shunting position in which the hook 61 does not engage with the engaging portion 12a, and driving means which straightly reciprocates the hook 61 between the locking position and a position in which the disk to be loaded.