Digital linear tape (DLT) is a magnetic storage medium for data backup and archiving digital data. It is a tape storage technology with linear recording. DLT media allow data to be transmitted more quickly than with other technologies (such as QIC). The latest version, S-DLT, is currently one of the three most commonly-used tape technologies.
Super digital linear tape (S-DLT) is a further development of DLT technology. It uses server-supported multi-channel recording and is read-compatible with DLT.