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 and static. For Drive Type: DDS; Compatibility: DAT 40; DDS-3; DDS-4; Maximum Native Data Capacity: 20.0 GB; Maximum Compressed Data Capacity: 40.0 GB. Manufacturer's limited lifetime warranty.