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Meaning of MINI DISC

 
Computing Dictionary
 
 Definition: 

A music medium designed by sony as a portable replacement for music compact discs. In 1994 Sony announced a data version which can hold 140 MB or about 100 MB using error correction. These will be competitive with 128 MB magneto-optical disks. Mini Discs may be either a re-writable or mass-produced read-only type. Sony have also announced a standard data format.

The transfer rate is similar to cd-rom which is slow compared to the current magneto-optical drives (which are similar to an old hard disk, with writing noticeably slower than reading). Pre-recorded read-only Mini Discs can be mass manufactured on a modified CD press - this and the standard format mean it could take off as a software distribution medium.

An article in the December 1994 PCW quotes access times of about 300 ms and data transfer rate of about 150 kb/s (i.e. about single spin CD rate).

 

 

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