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"JOYSOUND", an online karaoke system released in 1992, distributed new songs quicker and has more selections of songs than laser disks. It was a great hit among young people, since new songs were on the list one week to two weeks after release. This system, with which we are all familiar today, was developed in 1986 based on the system of "TAKERU", a system in use for vending machines selling computer software.