9 scientific, measuring, surveying, signaling and electric apparatus and instruments, namely, apparatus for recording, transmission and reproduction of sound and images, namely, apparatus with processing, decoding and encoding technology for analog and digital audio and/or video signals; [ analog to digital converters and digital to analog converters for use with audio and/or video signals; ] devices comprising a digital signal processor to operate on audio and/or video signals; [ apparatus and instruments for conducting, switching, converting, storing, regulating and controlling electricity, namely, electrical adapters, transformers, converters, capacitors, batteries and cables; ] data processors; [ electronic video game consoles; ] computer programs for converting, processing, decoding and encoding analog and digital audio and/or video signals; cinematographic, checking, and teaching apparatus and instruments, namely, equipment for the recording, transmission and rendition of sound, data and images, [ namely, speakers, audio speakers, loudspeakers, speaker enclosures, speaker racks, tracking sensors for use in detecting and enabling measurement of the position of audio-visual objects, in the nature of microphone arrays, cameras or infrared sensors; ] audiovisual rendering equipment in the nature of electronic audio, video and optical receivers and transmitters for mathematically analyzing and creating three dimensional signals out of simple signals by calculating the signals and reproducing the signals through electro-acoustic transducers, power amplifiers; [ monitoring equipment in the nature of acoustic meters and surveillance sensors used for reproducing and checking transmissions without interfering with the regular transmission; electronic sound systems consisting of control equipment with processing and decoding technology for acoustic signals comprising of speakers, audio speakers, loudspeakers, speaker enclosures, speaker racks, electronic acoustic tracking arrays in the nature of microphone arrays, cameras or infrared sensors for enabling measurement of the position of audio-visual objects; power amplifiers; image viewers and monitoring equipment both in the nature of electronic video and audio surveillance installations comprising of cameras and video monitors and sensors directed to arrangements for reproducing and checking audio-visual signal transmissions without interfering with the regular transmission; computer memories, electronic memories, RAM cards, memory boards, hard discs for computers, blank optical discs; ] computer software for authoring, selecting, adapting, and combining different audio-visual content parts into final software applications; [ loudspeaker systems consisting of loudspeakers, loudspeaker drivers, balancers, amplifiers, equalizers; ] audio mixers, mixing consoles and interfaces between mixing desks and mixing consoles [ ; pre-formatted recording carriers and data carriers, namely, optical discs, magneto-optical discs, video tapes, audio cassettes, hard discs; semiconductor memory devices comprising an interface and semiconductor memories and semiconductor memory units, namely, compact flash and secured data picture cards and USB memory devices; and providing of computer programs for download in data networks via indexes of information, sites and other resources available on communications networks for others, for providing users of communications networks with means of identifying, locating, grouping, distributing, and managing data and links to third-party computer servers, computer processors and computer users, and for searching, browsing and retrieving information, sites, and other resources available on communications networks for others and for organizing content of information provided over a communications networks according to user preference ]