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 Go To | Black Watch | SD-3 Cartridges | 3590 Cartridges |

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The helical scan advantage

The track formats used in helical scan recording take full advantage of the half-inch tape width, resulting in storage capacities more than 60 times as high as 36-track linear recording technology. Helical scan recording makes this possible by placing tracks at an angle across the width of the tape. The tape wraps around the recording head at an angle and the head itself rotates as it writes data to the tape. This creates a large number of short tracks positioned close together, giving a net result of higher recording densities.

The Black Watch SD-3 tape cartridge stores up to 50 gigabytes of uncompressed data. That's more than 60 times the storage of our industry-leading Ecart 3490E cartridges, and 250 times the capacity of our Black Watch 3480 cartridges.

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