Apparatus for recording, transmission and reproduction of images and sound, magnetic data-carriers, namely, blank magnetic data carriers, blank compact discs, blank hard discs, CD-ROMs, namely, black CD-ROMs for sound video-recording, CD-ROM drives, CD-ROM writers; data processing apparatus and computers, namely, computer keyboards, optical scanners, CD and floppy disc drives, CD and DVD burning stations and mobile computers, namely, laptops, notebooks, tablets, note-books, computer operating...