multi media systems comprised of personal computers, floppy disks, compact disks, or other recordable media being prerecorded with data, namely, computer control software for producing or reproducing video images or sound information, display screens, namely, computer monitors, video tape and cassette recorders, TV cameras, information carrier means, namely, magnetic tape, opto-magnetic recording media or other information recording media on which multi media programming can be recorded with an appropriate recording device, video cutting systems, comprised of a video player device coupled to a programmed computer, a magnetic erasing/recording device or a mechanical cutter/splicer, analog and digital recording/reproducing devices coupled to a programmed computer, signal amplifiers, signal distributing means, namely, video switching devices, TV cables, namely, coaxial cables, twisted pair, RS232 cables; TV plugs, pluggable electronic circuit boards, decompression systems for video data, comprised of hardware and software combinations for compressing the size of data files in a known manner and for decompressing the files for playback and recording, electric filters, voltmeters, CD recorder, CD ROM recorder, scan transducers, standard transducers, computer workstations comprised of a personal computer coupled to video processing equipment, software which combines audio and video data from different sources for producing combined audio sounds and combined video images