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A magneto-optical drive is a kind of optical disc drive capable of writing and rewriting data upon a magneto-optical disc. 130 mm (5.25 in) and 90 mm (3.5 in) discs are the most common sizes. In 1983, just a year after the introduction of the compact disc , Kees Schouhamer Immink and Joseph Braat presented the first experiments with erasable ...
MD Data is a type of magneto-optical medium derived from MiniDisc. [ 1 ] In developing and marketing it, Sony was trying to set the new standard for removable media to replace the 3½-inch diskette it had also helped create.
Magneto-optical recording writes/reads optically. When writing, the magnetic medium is heated locally by a laser, which induces a rapid decrease of coercive field. Then, a small magnetic field can be used to switch the magnetisation. The reading process is based on magneto-optical Kerr effect. The magnetic medium are typically amorphous R-Fe-Co ...
Download QR code; Print/export ... Magneto-optical drive; MD Data; MultiLevel Recording; O. Optiarc; Optical disc drive; Optical jukebox; Optical media preservation;
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. 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 ]
In 1983, Philips introduced their early work on magneto-optical drive technology at an industry conference. This used a laser to warm the storage media so that it became susceptible to magnetic fields and an electromagnet, similar to the one in a hard drive, to write data by realigning the material within. It worked like a conventional optical ...
A magneto-optic effect is any one of a number of phenomena in which an electromagnetic wave propagates through a medium that has been altered by the presence of a quasistatic magnetic field. In such a medium, which is also called gyrotropic or gyromagnetic , left- and right-rotating elliptical polarizations can propagate at different speeds ...
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