Advanced Intelligent Tape is a tape format developed by Sony. Its main competitors are the DLT, LTO, DAT/DDS and VXA formats. There are two varieties of AIT: “normal” AIT tape that uses a cassette medium similar to Video8, while the Super AIT (SAIT) format uses a wider tape in a single-spool cartridge, similar to DLT and LTO.
AIT tapes (picture by Mike Wilkes)
AIT-1 started with a capacity of 25GB in 1996, while the latest version, AIT-5, was announced in 2006 with a native capacity of 400GB and a speed of 24 MB/s. The latest SAIT standard, SAIT-2, was also released in 2006, and has a native capacity of 800GB per tape while reaching a speed of 45 MB/s. Since Sony is now developing the next DDS standard with HP, new versions of AIT are not expected.
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