Some future optical storage (hopefully are not vaporware): HoloMem, Cerabyte & MS Project Silica
HoloMem: An optical ribbon inside a standard LTO tape case. Storage Capacity: 200 TB per LTO cartridge Lifespan: 50 years Storage media: 100 meters of polymer tape inside an LTO tape case. Bandwidth read/write: thought to be about the same as an LTO-9 tape (up to 400 MB/s)