Audio amplifiers; Audio speaker enclosures; Audio speakers; Audio-video receivers; Computer hardware and computer software programs for the integration of text, audio, graphics, still image and moving pictures into an interactive delivery for multimedia applications; 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 software to control and improve computer and audio equipment sound quality; Computer software to enhance the audio-visual capabilities of multimedia applications, namely, for the integration of text, audio, graphics, still images and moving pictures; Digital audio players; Digital audio tape players; Digital audio tape recorders; Electric audio playback units with lights and speakers; Software to control and improve audio equipment sound quality; Visual recordings and audio visual recordings featuring music and animation