Data Storage Technology (DST) is a 19 mm (0.75 in) wide magnetic tape data storage format created by Ampex in 1992. The DST format was also made by Ampex as a digital videotape format, DCT, using the same design of cassette. DST is relatively high capacity and high speed, especially compared to other tape technologies available in the 1990s. There are 3 standard tape cartridges sizes compatible with each generation, "Small", "Medium", and "Large".
|Generation||Original||Double Density||Quad Density|
|"Small" Capacity (GB)||25||50||100|
|"Medium" Capacity (GB)||75||150||300|
|"Large" Capacity (GB)||165||330||660|
|Max Speed (MB/s)||15||20|