Sony Travan qtr-1 SL Formatted Media Tape Mini Data Cartridge 2-Pack 400 Native / 800 Compressed Manufacturer: Sony [Product Specifications] The main specifications of the QTR-1 data cartridge are as follows: ● Storage Capacity: 400MB uncompressed / 800MB compressed 2-pack ● Format: Travan (TR-1) SL formatted media ● Application: Data cartridge for high-end workstations and mid-range server network backup systems that require a Travan tape drive. * Purchased as reference material and stored in a dark place. * Although new and unused, one has been opened to check the design. (Not used for recording, etc.) * Long-term indoor storage. * We are unable to provide any support for defects in the cartridge itself. Please understand this before purchasing. * Sony has discontinued manufacturing this product, making it extremely difficult to obtain new ones.