Card readers for magnetically encoded cards; Computer hardware for upload, storage, retrieval, download, transmission and delivery of digital content; Computer software for manipulating digital audio information for use in audio media applications; Computer software for use in the encryption and decryption of digital files, including audio, video, text, binary, still images, graphics and multimedia files; Computer software for use in the safeguarding of digital files, including audio, video, text, binary, still images, graphics and multimedia files; Computer storage devices, namely, high-speed storage subsystems for storage and backup of electronic data either locally or via a telecommunications network; Digital media streaming devices; Downloadable electronic data files featuring broadcasting and media information; Electric and electronic video surveillance installations; Electronic and optical communications instruments and components, namely, cable television transmitters; Electronic and optical communications instruments and components, namely, communication link testers for testing communication links; Electronic apparatus and devices for controlling access to pay-television services; Electronic apparatus, namely, electronic display boards, plasma display boards, electronic display screens; Electronic circuits; Electronic communications systems comprised of computer hardware and software for the transmission of data between two points; Electronic computers; Electronic data recorders; Electronic display interfaces; Electronic encryption units; Electronic equipment, namely, transformers, baluns, cables used in connection with computers, computer peripheral devices, televisions, audio-video equipment, closed-circuit TV equipment and telecommunication equipment; Software for the operational management of portable magnetic and electronic cards