Data Recovery Glossary > RLL

RLL is the acronym of Run Length Limited. RLL is an encoding technique used to encode data into a hard disk or floppy disk. RLL is the most widely used method of encoding than the earlier method MFM (Modified Frequency Modulation). Despite being a complicated process RLL allows more data to be stored on the drives.

RLL is a type of compression method which stores more than 50 percent of data than MFM method. RLL reduces the amount of data-checking information that is stored and hence reduces instability for a given amount of data.

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