![]() īy March 2011 Sony had sold 22 million MD players. MiniDiscs were very popular in Japan and found moderate success in Europe although it was designed to be the successor of the cassette tape, it did not manage to mass replace it globally. 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. The music format was based on ATRAC audio data compression, Sony's own proprietary compression code. Sony announced the MiniDisc in September 1992 and released it in November of that year for sale in Japan and in December in Europe, North America, and other countries. MiniDisc ( MD) is an erasable magneto-optical disc-based data storage format offering a capacity of 60, 74, and later, 80 minutes of digitized audio. ![]() The Sony MZ1, the first MiniDisc player, released in 1992. High-Definition Versatile Multilayer Disc (HD VMD).HD DVD: HD DVD-R, HD DVD-RW, HD DVD-RAM.Blu-ray Disc ( BD): BD-R & BD-RE, Blu-ray 3D, Mini Blu-ray Disc. ![]() ![]()
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