The invention relates to a device for gripping a CD from the top of a stack for automated processing, by putting actuated deflectable fingers in the central opening of the CD. Axial displacement is used to force the fingers radially outward. The axial displacement is advantageously provided by abutting a relatively axially displaceable part of the gripper against a fixed object and continue axial displacement of the gripper. Use is made of an arrangement similar to the actuating mechanism of a ball-point to extend and retract the writing tip or the mechanical arrangement used in electrical micro switches operated by a push button (e.g. the Short Stroke Key Switches of ITT Industries). This arrangement is combined with an electrical switch to detect the extended or retracted position of the fingers to provide a corresponding electrical signal to a control means.