A disk drive apparatus is provided. The disk drive apparatus includes: a frame which includes a slot to insert a disk therethrough; a spindle motor assembly which includes a turntable including a disk seating part and a chucking member, and a spindle motor to rotate the turntable; a traverse assembly which mounts the spindle motor thereon and is movable in a direction perpendicular to an inserting direction of the disk; a conveyance roller which is movable between a contact position and a non-contact position with the disk and conveys the disk using a friction force; and a roller driving unit which moves the conveyance roller from the non-contact position to the contact position after an unchucking operation of the disk is completed, when the disk is unloaded.