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Comparison of various optical storage media. This article compares the technical specifications of multiple high-definition formats, including HD DVD and Blu-ray Disc; two mutually incompatible, high-definition optical disc formats that, beginning in 2006, attempted to improve upon and eventually replace the DVD standard.
"VCR"-format cassettes in case (left) and on own (right). A full-size CD is shown for scale. Size comparison between a Betamax cassette (top) and a VHS cassette (bottom) The videotape format war was a period of competition or "format war" of incompatible models of consumer-level analog video videocassette and video cassette recorders (VCR) in the late 1970s and the 1980s, mainly involving the ...
In the early 2000s in the prerecorded video market, VHS began to be displaced by DVD. The DVD format has several advantages over VHS tape. A DVD is much better able to take repeated viewings than VHS tape. Whereas a VHS tape can be erased though degaussing, DVDs and other optical discs are not affected by magnetic fields. DVDs can still be ...
While a VHS tape can be erased if it is exposed to a rapidly changing magnetic field of sufficient strength, DVDs and other optical discs are not affected by magnetic fields. The relative mechanical simplicity and durability of DVD compared to the fragility of VHS made DVDs a far better format from a rental store's perspective.
S-VHS tapes can give better audio (and video) quality, because the tapes are designed to have almost twice the bandwidth of VHS at the same speed. Sound cannot be recorded on a VHS tape without recording a video signal because the video signal is used to generate the control track pulses which effectively regulate the tape speed on playback.
Despicable Me 2 is the best-selling Blu-ray disc on Amazon. Source: Amazon.com Almost since it came into being with the release of Sony's PlayStation 3, Blu-ray video discs have been dogged by doubts.
The Blu-ray/HD DVD conflict resembled the earlier videotape format war between VHS and Betamax, partly because of Sony's strong involvement in both episodes. These format wars have often proved destructive to both camps because consumers, afraid of committing to a losing standard, would refrain from purchasing either. [3]
On sites like eBay and LoveAntiques, collectible VHS tapes are valued at upwards of nearly $10,000 - depending on the rarity and condition of the tape, of course.
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