Purchase 4mm Tapes

Digital Data Storage (DDS) is a format for storing computer data on a Digital Audio Tape (DAT). DDS uses tape with a width of 3.8mm, with the exception of DAT 160 and DAT 320, which are 8mm wide. DDS media tape drives uses helical scanning; allowing for data to be rewritten if needed. DDS is primarily intended for use as off-line storage, especially for generating backup copies of working data.

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