The native capacity of 12 GB corresponds to the actual storage without compression. The compressed capacity of 24 GB is achieved through hardware compression (2:1 ratio) performed by the tape drive. The actual compression rate varies depending on the file type: text documents compress more than already compressed files (JPEG images, MP4 videos). For optimal archiving, store your cartridges in an environment between 5°C and 32°C with relative humidity of 10% to 80%. Avoid direct exposure to sunlight, strong magnetic fields and dust. Cartridges should be stored vertically in their original case to maintain proper tape tension and ensure maximum longevity of archived data. sony DDS-3 cartridges are designed for reliable archiving with an estimated data retention life of 10-30 years under opti.
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