For IBM and HP LTO-3 tape drives with WORM capability. Quantum media cartridges are manufactured to industry standards for quality and reliability, ensuring low error rates, high performance and long-term durability. Quantum media allows you to archive your data with confidence. The Quantum media family offers you more choices to better manage your data over time, and now includes LTO Ultrium tape cartridges. The LTO Ultrium tape format has been optimized for high capacity and performance with outstanding reliability, in either stand-alone or automated environments.