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Philips Videocassette Recorder, N.V. Philips (1970) Extinct |
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U-matic, Sony, JVC, Panasonic and others (1971) ANSI/SMPTE 21M-1997. Also known as Type E Helical Scan. Threatened |
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Cartrivision, AVCO Corporation (1972) Extinct |
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V-Cord, Sanyo (1972) Extinct |
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BetaMax, Sony (1975) Critically endangered |
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VHS, JVC/Panasonic (1976-7) Lower risk. However, if the tape itself is older than 10 years, it should be considered for recopying. |