Recording apparatus, namely magnetic tape recorders, Magnetic-optic disc recorders and CD-ROM recorders, for recording sound, images or data; transmission apparatus, namely, routers, switchers, modems, and multiplexors, for reproducing sound, images or data; reproduction apparatus, namely magnetic tape players, magnetic optic disc reading units, CD-ROM reading units and DVD reading units, for reproducing sound, images or data; data processors, computers; blank recording media, namely CD-ROMs, compact audio discs, compact video discs, optical discs, magnetic discs, hard computer discs, floppy computer discs, and disc drives for computers; pre-recorded CD-ROMs, compact audio discs, compact video discs, optical discs, and magnetic discs, containing computer program user manuals and technical documentation relating to computer hardware and software; computer programs for use by energy service providers and utility distribution companies, for billing, credit/collections, meter reading and meter management, customer communications, marketing communications, customer care, and customer management, distribution management, work management, incident/outage management, facilities operations, Supervisory Control and Data Acquisition, geographic information systems, network analysis, and preventive maintenance; and magnetic audio and visual data carriers, namely routers, switchers, modems, and multiplexors