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The DGD125P cartridge deploys helical scan technology, a recording method, which winds the tape around a rotary head positioned at an oblique angle to the tape path (similar to a VCR), thereby allowing data to be recorded in diagonal stripes rather than along the horizontal length of tape. This approach allows for extremely high data densities when compared to conventional linear scan recording methods. For long-term archival storage and a low error rate, Sony DDS tapes employ a magnetic material that has outstanding magnetic transfer characteristics. Key to this performance are Sony's ultra-fine particles and anti-oxidation coating. In DDS3 DGD125P model it is comprised of MP++. To ensure reliability under the stress of repetitive read/write operations, Sony developed the highly durable HCL (High Cross Linkage) binder. Likewise, Sony's RDP mechanism helps maintain smooth tape winding, thanks to textured sheets that sandwich the tape, and Sony's HR135 backcoating also provides extra stability.
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