the arrangement has a press-back part (12) on one side of a disc channel pivotable between wait and playing positions, a motor drive mechanism (16) for actuating the press-back part in response to disc loading and unloading, a main pressure part (15) pivotable between acceptance and play positions, a disc guide (26) and a cam mechanism (25). The main pressure part pivots from the acceptance position to the play position when the press-back part moves from the wait position to the playing position and vice-versa
