IBM 3592 Tape Cartridges are designed to work with the first-generation IBM Total Storage Enterprise Tape Drive 3592 Model J1A (3592 J1A tape drive) & the second-generation IBM System Storage TS1120 Tape Drive (TS1120 Tape Drive). Cartridges are available in three lengths & in either re-writeable or Write Once, Read Many (WORM) formats. The short length 3592 JJ/JR cartridges provide rapid access to data & the standard length 3592 JA/JW cartridges provide high capacity. The 3592 Extended Data JB & Extended WORM JX 700GB high capacity cartridges support TS1120 tape drives only.