9 Scientific, electrical, cinematographic, signaling, supervision, teaching apparatus and instruments, namely, handheld devices for DVD-players to enable users to control and interact with specially designed content, DVD-players, television, computers, remote controls for DVD-players, televisions, and computers that use multimedia in providing educational and entertainment content; apparatus for recording, transmission or reproduction of sound or images, namely, a DVD machine with a specifically equipped device to enable users to control and interact with the machine using specially designed content, video tape decks, audio tape decks, CD players, stereo tuners; pre-recorded magnetic data carriers with educational and entertainment content; video cassette recorders, radio receiving sets, blank DVD-discs; data processors for use in the field of multimedia, computers, computer software for education and entertainment, computer hardware, computer chips and microprocessors, hand held computers, laptop computers, computer terminals, keyboards, joysticks, monitors, devices for processing computer games, namely, connectors for DVD-players, computer game software, sensor cards in the nature of k-cards for use by users and to allow users easily to interact with the specially-formatted DVD-programming, and computer parts and fittings sold as a unit therefor, electrical plugs; prerecorded programs recorded on DVDs for entertainment and teaching, pre-recorded DVD-discs featuring education and entertainment content, interactive TV-cards, namely, sensor cards that use multimedia in providing educational and entertainment content; computer hardware devices for visual presentations of messages and commands in providing educational and entertainment content; downloadable electronic publications in the nature of magazines and newsletters in the field of education and entertainment content and provided on a global computer network, on recorded DVD-discs and sensor cards; mechanisms for coin-operated apparatus, namely, video games, pinball machines