  4mm Data Tape (DDS)
What is DDS data tape?
DDS (Digital Data Storage) is a format for storing and backing up computer data on tape that evolved from the Digital Audio Tape (DAT) technology. In 1989, Sony and Hewlett Packard defined the DDS format for data storage using DAT tape cartridges.
DDS evolved from DAT (Digital Audio Tape) and uses the same recording principle as home video recorders. However, instead of recording analogue video signals, it records digital data. Both use the same type of tape, but computer grade DDS tape must meet strict ANSI standards. This means it has a much lower BER (Bit Error Rate) than most DAT tape and is therefore more reliable. Unlike audio DAT tape, DDS is certified "error free".
*Important: A 4mm Tape DDS cartridge needs to be retired after 2,000 passes or 100 full backups. You should clean your 4mm Tape DDS tape drive every 24 hours with a cleaning cartridge and discard the cleaning cartridge after 30 cleanings. 4mm Tape DDS tapes have an expected life of at least 10 years.
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