SONY MD MiniDisk, 10 diskov za audio ali IT shranjevanje podatkov

10 ploščkov SONY MD na prodaj.
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MiniDisc (MD) is a discontinued erasable magneto-optical disc-based data storage format offering a capacity of 60, 74, or 80 minutes of digitized audio.

Sony announced the MiniDisc in September 1992 and released it in November[2] of that year for sale in Japan and in December in Europe, North America, and other countries.[3] The music format was based on ATRAC audio data compression, Sony's own proprietary compression code. Its successor, Hi-MD, would later introduce the option of linear PCM digital recording to meet audio quality comparable to that of a compact disc. MiniDiscs were very popular in Japan and found moderate success in Europe.[4] Although it was designed to succeed the cassette tape, it did not manage to supplant it globally.[5]

By March 2011, Sony had sold 22 million MD players, but discontinued further development.[6] Sony ceased manufacturing and sold the last of the players by March 2013.[7] On January 23, 2025, Sony announced they would end the production of recordable MD media in February 2025.[8]
Market history

In 1983, just a year after the introduction of the compact disc, Kees Schouhamer Immink and Joseph Braat presented the first experiments with erasable magneto-optical compact discs during the 73rd AES Convention in Eindhoven.[9] It took almost 10 years, however, before their idea was commercialized.

Sony's MiniDisc was one of two rival digital systems introduced in 1992 that were intended to replace the Philips Compact Cassette analog audio tape system: the other was the Digital Compact Cassette (DCC), created by Philips and Matsushita (now Panasonic). Sony had originally intended the Digital Audio Tape (DAT) to be the dominant home digital audio recording format, replacing the analog cassette. Because of technical delays, the DAT was not launched until 1989, and by then the U.S. dollar had fallen so far against the yen that the introductory DAT machine Sony had intended to market for about $400 in the late 1980s then had to retail for $800 or even $1,000 to break even, putting it out of reach of most users.

Relegating DAT to professional use, Sony set to work to come up with a simpler, more economical digital home format. By the time Sony came up with the MiniDisc in late 1992, Philips had introduced a competing system, DCC, on a magnetic tape cassette. This created marketing confusion very similar to the videocassette format war of the late 1970s and early 1980s. Sony licensed MD technology to other manufacturers, with JVC, Sharp, Pioneer, Panasonic and others producing their own MD products. However, non-Sony machines were not widely available in North America, and companies such as Technics and Radio Shack tended to promote DCC instead.