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A Magneto-optical drive is a disk drive for computers. It can read and write data to magneto-optical disks. The technology was made at the end of the 1980s. Both 5.25" and 3.5" media exist. The disks look like CD-ROMs, but they are protected with a plastic cover. The MiniDisc is a Magneto-optical disk. The other disks look similar but have a bigger physical size.
How it works
All disks have a physical write protection switch (like 3.5" floppy disks). They are pretty resistant to data change, can support temperatures up to about 100 °C, and do not care much about light.
DVD-RAM disks are very similar in appearance, they are optical though.