1970s
- Various Quadraphonic encoding methods: CD-4, SQ, QS-Matrix, and others. The expense (and speaker placement troubles) of quadraphonic, coupled with the competing formats requiring various demodulators and decoders, led to an early demise of quadraphonic, though 8-track tape experienced a temporary boost from the introduction of the Q8 form of 8-track cartridge. Quadraphonic sound returned in the 1990s substantially updated as surround sound, but incompatible with old hardware.
- JVC VHS vs. Sony Betamax vs. Philips Video 2000, the analog video videotape format war. The competition started in 1976 and by 1980, VHS controlled 70% of the North American market. VHS's main advantage was its longer recording time. From the consumer perspective, VHS blank media held more hours and therefore was less expensive.
- The first small format video recording devices were open reel-to-reel 1/2" "portable" EIAJ-1 recorders, most of which came with television tuners to record off the air TV. These never caught on in the consumer market but did find their way into educational television and were the mainstays of early public-access television stations. The uniformity of the EIAJ-1 format, was the result of a developmental format war between Sony and Panasonic, each of whom were aiming at this marketplace. The existence of the Electronic Industries Association of Japan (EIAJ) was the Japanese electronics industry's answer to settle some potential format wars.
- Capacitance Electronic Disc (CED) vs. LaserDisc (LD) vs. VHD (Video High-Density), non-recordable video disc formats. All of these ultimately failed to achieve widespread acceptance, although LD found a considerable videophile niche market that appreciated its high quality image, chapter select and widescreen presentation. The Laser Disc remained available until the arrival of the DVD. Mainstream consumers preferred the recordable videotape for capturing live television and making home movies, quickly making VHS the de facto standard video format for almost 20 years (circa 1982 to 2002).
Read more about this topic: Format War