Sony 4mm DDS-5, DAT72, 36/72GB The Sony DDS-5 is an amazingly powerful 4mm data cartridge for archiving massive amounts of data. Featuring 36 GB of native data capacity and 72 GB compressed capacity, the Sony DDS5 4mm offers efficient data backups and information recall. The Sony DDS5 is also highly durable and provides very low error-rates. With the DDS-5 tape cartridge, you can perform 100 data backups (on average) and/or 2000 tape rotations.