Advanced Intelligent Tape is a Sony format for helical scan storage of data on 8mm tape cartridges. 

The cartridges themselves are sophisticated, using AME formulations based on cobalt and featuring electronically readable memory on the cartridges known as MIC or "Memory-In-Cassette". This allows most drive/software combinations to identify the cartridge and it's contents independently of user error or action. In addition, AIT drives are self cleaning under most circumstances and can warn the user when a cartridge is developing errors or wearing out.

This format is not compatible with other common 8mm tape formulations and storage layouts.