9 Apparatus for receiving, recording, transmitting, reproducing, storing, encrypting, decrypting sound or images, namely digital data sending and/or receiving apparatus, set-top boxes for receiving multimedia content (video, photos, sounds); multimedia players; television sets; players and recorders for high definition optical disks, digital optical disks and compact disks; mp3 and mp4 players; media tablets, mobile telephones, multimedia servers; computer servers, computers; modems, telecommunications modems; display monitors; computer software and computer programs, particularly platform computer software for the digital distribution of content (video, data and sounds), computer software for providing access to a computer or data transmission network, particularly via a global communication network (such as the Internet); graphical user interface computer software, cinematographic film, high density optical disks, digital optical disks, compact disks