SuperBeta (sometimes called High Band) was a development of the consumer Betamax video cassette format, and was introduced by Sony in 1985. A few other manufacturers also made SuperBeta machines, including NEC, Sanyo and Radio Shack.
SuperBeta increased the horizonal resolution from 240 to 290 lines (a big improvement, but still lower resolution than LaserDisc). In addition, some machines could record at a faster tape speed known as Beta-Is (4cm per second), the same speed as the original Beta-I mode on the first Betamax machines, for even higher quality.
Any Betamax tape could be used on a SuperBeta machine, but high quality tapes such as Sony’s PRO-X tapes were available to take full advantage of the SuperBeta’s higher quality in Super Beta Pro mode. Tapes recorded on a SuperBeta machine could be played without any problems in Beta Hi-Fi machines, but earlier Betamax VCRs showed some highlight streaking. No SuperBeta pre-recorded cassettes appear to have been released.
By 1986, the market share of Betamax was down to 7.5% in the UK, and only one SuperBeta machine was marketed in the UK (the SL-HF950, which had the ‘linear skate’ cassette loading system). By 1988 Sony recognised the video format war was over and began producing VHS video recorders, marking the end of Betamax in the UK and Europe. However, Betamax still had it supporters and Sony continued to produce Betamax recorders in the US until 1993, and in Japan until 2002. In 2016, Sony ceased production of Betamax tapes.