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Consumer Electronics by S. P. Bali

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VIDEO DISC FORMATS

The three non-interchangeable video disc formats fall into two basic categories; optical and capacitance. The laser optical system (also called VLP) which is employed by Philips, uses a laser beam to recover the electronically encoded information stored on the disc. The capacitance system (also called capacitance electronic disc or CED), employed by both JVC and RCA, uses a stylus and tracking arm similar to that of a conventional record player to recover the information recorded on the grooves of the disc. There are two variations of the laser optical system reflective and transmissive. There are also two variations of the capacitance system, the video/audio high density system (VHD) and the capacitance electronic disc system ...

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