Electronic Video Recording

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Short description: Film-based format for television broadcasts, invented by CBS

Electronic Video Recording, or EVR, was a film-based video recording format developed by Hungarian-born engineer Peter Carl Goldmark at CBS Laboratories in the 1960s. Intended to be used primarily for educational and household use as a method of storing large amounts of videos and papers without taking up as much space as other media forms.[1]

CBS announced the development of EVR on August 27, 1967.[2] The 750-foot film was stored on a 7-inch-diameter (180 mm) spool in a plastic cartridge. It used a twin-track 8.75 mm film onto which video signals were transferred by electron beam recording, two monochrome tracks in the same direction of travel. [3] Some EVR films had a separate chroma track in place of the second program monochrome track for color EVR films. The images stored on an EVR film were visible frames much like motion picture film, and were read by a flying-spot scanner inside an EVR player to be converted to a video signal to be sent to a television set.[4]

EVR was also released by CBS as a professional version for television broadcasting, called BEVR (Broadcast EVR). As a professional medium, the format offered extremely high quality. It was, however, quickly superseded by professional and consumer magnetic tape formats.[5]

Applications

In 1970 EVR was briefly experimented with as a form of media for part of a potential government mixed media network system[6]

In 1975, Nintendo created EVR Race, a horse betting arcade game that used the EVR system to play back video footage of animated[7] horse races. Players would place bets on horses, and then view a race in which one of the horses would win. Once the race ended, the player(s) who bet on the winning horse would receive a payout.[8][9] EVR Race was Japan's highest-grossing medal game for three years in a row, from 1976 to 1978.[10]

References

  1. ↑ "CBS Laboratories". http://www.bretl.com/documents/CBSLaboratoriespresskit.pdf. 
  2. ↑ "New Playback Device for TV Viewers". Chicago Tribune: pp. 2-18. August 28, 1967. http://archives.chicagotribune.com/1967/08/28/page/56/article/new-playback-device-for-tv-viewers. 
  3. ↑ "NYU, History of Electronic Video Recording (EVR), Hammer". https://www.nyu.edu/tisch/preservation/program/student_work/2010fall/10f_2920_hammer_a2.pdf. 
  4. ↑ BEKERS' CURIOUS EVR DONATIONS
  5. ↑ CED in the History of Media Technology, 1969: CBS EVR or Electronic Video Recording System Prototype
  6. ↑ Meaney, John w. (1970). "The Implications of a Mixed Media Network for Information Interchange.". https://files.eric.ed.gov/fulltext/ED057864.pdf. 
  7. ↑ "Rare footage from Nintendo's groundbreaking EVR Race videotape-based arcade game - The Dot Eaters". https://www.youtube.com/watch?v=jG2WQ1i_vO0. 
  8. ↑ "Iwata Asks: Punch-Out!! - The Proposition is to Use Two Televisions". Nintendo. 2009-08-07. http://iwataasks.nintendo.com/interviews/#/wii/punchout/0/0. Retrieved 2009-08-07. 
  9. ↑ Kohler, Chris (July 5, 2017). "Nintendo Has Now Been Making Video Games For 40 Years" (in en-us). Kotaku. https://kotaku.com/nintendo-has-now-been-making-video-games-for-40-years-1796650347. 
  10. ↑ "調査対象5年間のベスト1". Game Machine (Amusement Press, Inc.) (159): 1. 15 February 1981. https://onitama.tv/gamemachine/pdf/19810215p.pdf. 



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