Sony DG90P [ SONDG90P ]: 1/8 DDS-1 Cartridge, 90m, 2GB Native / 4GB Compressed Capacity. Outstanding magnetic transfer characteristics result in superior recording performance. Composite layered film provides reliable long term data storage. A tough, durable cartridge shell keeps your data safely away from damage, dust & static. For Drive Type: DDS; Compatibility: DAT 2.6; DAT 4; DDS-1; Maximum Native Data Capacity: 2.0 GB; Maximum Compressed Data Capacity: 4.0 GB. ..