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comp.arch.storage FAQ 1/2
Section - [5.15] 19MM (D1 and D2) {Brief}

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From: Tape

19mm is 3/4 inch helical scan tape.  Two varieties exist, D1 and D2.
Both originated from broadcast and/or data recorder applications,
where the data/signal was analog in nature.  They have been modified
for digital use, with error correcting capabilities added.

Data rates are in the 8-45 MByte/sec range, with storage capacities
in the 25-175 GB range in physically different size cartridges with
different length tapes, but all fitting into the same tape drive unit.

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Last Update March 27 2014 @ 02:11 PM