Audio and video production and recording studio sound systems, namely, analog and digital computerized consoles and workstations comprised of a computer-based digital apparatus and parts therefor, all for recording, controlling, editing, modifying, enhancing and mixing music, audio and video; blank magnetic data carriers; blank optical discs; blank magneto-optical disks; blank magnetic computer tapes; and blank CD-ROMs for sound or video recording; pre-recorded magnetic data carriers, pre-rec...