On May 10, 1975, Sony released a consumer-level analog videocassette magnetic tape recording format called Betamax. Today, the format is obsolete, having lost the videotape format war to VHS with Betamax recorders ceased production in 2002. The first efforts at video recording, using recorders similar to audio recorders with fixed heads, were unsuccessful. The problem was that a video signal has a much wider bandwidth than an audio signal (6 MHz vs…Read more
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