Abstract: A foreign substances-containing layer of a disk-shaped information carrier (3) is mechanically removed from the substrate material (13) in order to recover the substrate material (13) by a material removing process which separates the coating containing the foreign substances (18, 19, 20) from the substrate material (13). A device for implementing this process consists of a tool bottom part (1), a receptacle (2) for holding in place the disk-shaped information carrier (3), and a tool top part (7) movable with respect to the tool bottom part (1) in a direction parallel to the surface of the latter and provided with a blade (8) for peeling a layer (9) off the surface of the disk-shaped information carrier (3).

Abstract: A robot driver for a motor vehicle, which has a central casing (4) to be mounted in the passenger compartment (1) and actuating elements (5) for pedals (6) and, if appropriate, gear lever, can be mounted in the passenger compartment in a stable and uncomplicated way and without the risk of damage in that the casing is supported on the seating surface and back rest surface (8,9) of the driver's seat (2) and is connected to a rod (17) which is held on a steering wheel frame (19) mounted on the steering wheel (3) and is flush with the center of the steering column (18).