A disk drive apparatus includes a cartridge in which a disk for storing information is accommodated, a movable holder in which the cartridge is inserted so that an edge of the cartridge is placed at an inserted position, an ejection member rotatably supported for ejecting the cartridge from the holder in an ejecting direction when an ejection button is depressed, so that the cartridge edge is placed at an ejected position, a spring for actuating the ejection member in the ejecting direction, and a braking member for applying a resisting force to the ejection member in a direction opposite to the ejecting direction during the ejecting movement of the cartridge.