9 Apparatus for recording, transmission or reproduction of sound and images in the field of multimedia and apparatus and devices for storing and retrieving information technology data and audio/video streams, namely, set top boxes, home servers, digital video recorders, digital camcorders, still digital cameras, video juke box, audio juke box, audio players, personal video recorders, multimedia computers, personal digital assistants; blank magnetic data carriers, blank optical data carriers, blank solid state data carriers; data processors, computers, computer peripheral storage units; communication servers storage units; computer and server software, namely, software for operating systems, software for managing mass storage devices, software for managing computer networks