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| Keywords: MOD, Magneto-Optical Disk, archive, media |
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| MOD |
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A magneto-optical disk is a removable, rewritable disk that can store several gigabytes of data. Magneto-optical disks are available in different physical sizes, but are typically the same size as CDs or DVDs (5.25 inches). Unlike CDs and DVDs, magneto-optical disks are contained in a cartridge broadly similar to the casings used for floppy disks.
Magneto-optical disks are somewhat of a "niche" technology and relatively expensive. Magneto-optical disks are mostly used for long-term jukebox storage because like most removable media, access might take be up to a minute, depending on the time it takes to retrieve the platter, load it into the drive, and spin up the disk.
Magneto-optical disks were also frequently used by digital modalities such as CT, MRI and ultrasound, because of their robustness, especially compared to DVDs, and their greater tolerance for numerous read/writes.
In the DICOM standard, “MOD” is used as the standard abbreviation for magneto-optical disk. In general usage, “MOD” is more frequently used as the abbreviation for magneto-optical drive.
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