Blank optical discs; blank magneto-optical discs; blank magnetic tapes; blank floppy discs; blank semiconductor memories; cases for optical discs, magneto-optical discs, magnetic tapes; storage cases for optical discs, magneto-optical discs, magnetic tapes; storage racks for optical discs, magneto-optical discs, magnetic tapes; optical disc label kits, including labels of optical discs, inserts of optical discs, software for creating labels of optical discs, software for creating inserts of optical discs, precision label applicators for labels of optical discs; labels of optical discs; inserts of optical discs; cleaning kits for optical discs; optical lens cleaners; cleaners for optical discs; cleaning cloths for optical discs; magnetic cleaning cartridges; magnetic head cleaners; pens for writing on optical discs; speakers; headphones; medical data storage systems, including, optical discs, magneto-optical discs, magnetic tapes, drives for recording/reading optical discs, magneto-optical discs, magnetic tapes, printers for optical discs, magneto-optical discs, magnetic tapes, software, computers, transmitters, receivers, network interface devices.