IBM and Sony cram up to 330 terabytes into tiny tape cartridge

IBM and Sony have developed a new magnetic tape system capable of storing 201 gigabits of data per square inch, for a max theoretical capacity of 330 terabytes in a single palm-sized cartridge.

For comparison, the world’s largest hard drives—which are about twice the physical size of a Sony tape cartridge—are the 60TB Seagate SSD or 12TB HGST helium-filled HDD. The largest commercially available tapes only store 15TB. So, 330TB is quite a lot.

https://arstechnica.com/information-technology/2017/08/ibm-and-sony-cram-up-to-330tb-into-tiny-tape-cartridge/