Home and Professional Recording
One other major consequence of the Betamax technology's introduction to the U.S. was the lawsuit Sony Corp. v. Universal City Studios (1984, the "Betamax case"), with the U.S. Supreme Court determining home videotaping to be legal in the United States, wherein home videotape cassette recorders were a legal technology since they had substantial noninfringing uses. This precedent was later invoked in MGM v. Grokster (2005), where the high court agreed that the same "substantial noninfringing uses" standard applies to authors and vendors of peer-to-peer file sharing software (notably excepting those who "actively induce" copyright infringement through "purposeful, culpable expression and conduct").
In the professional and broadcast video industry, Sony's Betacam, derived from Betamax as a professional format, became one of several standard formats; production houses exchange footage on Betacam videocassettes, and the Betacam system became the most widely used videotape format in the ENG (Electronic News Gathering) industry, replacing the .75 in (19 mm) U-matic tape format (which was the first practical and cost-effective portable videotape format for broadcast television, signaling the end of 16 mm film — and the phrase "film at 11" often heard on the six-o-clock newscast, before the film had been developed). The professional derivative of VHS, MII (aka Recam) manufactured by Panasonic, faced off against Betacam and lost. Once Betacam became the de facto standard of the broadcast industry, its position in the professional market mirrored VHS's dominance in the home video market. On a technical level, Betacam and Betamax are similar in that both share the same videocassette shape, use the same oxide tape formulation with the same coercivity, and both record linear audio tracks on the same location of the videotape. But in the key area of video recording, Betacam and Betamax are completely different. Betacam tapes are mechanically interchangeable with Betamax, but not electronically. Betacam moves the tape at 12 cm (4.7 in)/s, with different recording/encoding techniques. Betamax is a color-under system, with linear tape speeds ranging from 4 cm (1.6 in)/s to 1.33 cm (0.5 in)/s.
Sony also offered a range of industrial Betamax products, a Beta I-only format for industrial and institutional users. This was basically cheaper and smaller than U-Matic. The arrival of the Betacam system reduced the demand for both Industrial Beta and U-Matic equipment.
Betamax also had a significant part to play in the music recording industry, when Sony introduced its PCM (Pulse Code Modulation) digital recording system as an encoding box/PCM adaptor that connected to a Betamax recorder. The Sony PCM-F1 adaptor was sold with a companion Betamax VCR SL-2000 as a portable digital audio recording system. Many recording engineers used this system in the 1980s and 1990s to make their first digital master recordings.
Initially, Sony was able to tout several Betamax-only features, such as BetaScan—a high speed picture search in either direction—and BetaSkipScan, a technique that allowed the operator to see where he was on the tape by pressing the FF key (or REW, if in that mode): the transport would switch into the BetaScan mode until the key was released. This feature is discussed in more detail on Peep Search. Sony believed that the M-Load transports used by VHS machines made copying these trick modes impossible. BetaSkipScan (Peep Search) is now available on miniature M-load formats, but even Sony was unable to fully replicate this on VHS. BetaScan was originally called "Videola" until the company that made the Moviola threatened legal action.
Sony would also sell a BetaPak, a small deck designed to be used with a camera. Concerned with the need for several pieces and cables to connect them, an integrated camera/recorder was designed, which Sony dubbed a "Camcorder"; the result was Betamovie. Betamovie used the standard-size cassette, but with a modified transport. The tape was wrapped 300° around a smaller, 4.4671 mm (0.1759 in)-diameter head drum, with a single dual-azimuth head to write the video tracks. For playback, the tape would be inserted into a Beta-format deck. Due to the different geometry and writing techniques employed, playback within the camcorder was not feasible. SuperBeta and industrial Betamovie camcorders would also be sold by Sony.
Read more about this topic: Betamax
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