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 MD Data Sony MMD-140A | |
| Media type | Magneto-optical disc |
|---|---|
| Capacity | 140 MB |
| Read mechanism | 780 nm semiconductor laser diode |
| Write mechanism | Magnetic field modulation |
| Developed by | Sony |
| Usage | Data storage |
| Extended from | Floppy disk MiniDisc |
| Extended to | Hi-MD |
| Released | July 1993 |
| Optical discs |
|---|
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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. MD Data competed in a format war with other disks such as SyQuest's EZ 135, Imation's SuperDisk, and the Iomega Zip.[2] Ultimately neither MD Data nor any of its competitors succeeded in becoming the de facto new universal standard fully replacing the 3.5 inch diskette; with recordable CDs coming closest to filling the role, followed by USB flash drives.
- ^ "Sony's Mini-MO". Byte. August 1995. Archived from the original on 20 December 1996.
- ^ Lasky, Michael S. (January 1996). "Is Sony's 140MB MiniDisc Drive the Next Betamax?". PC World. Archived from the original on 17 January 1999.