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Optical discs are no longer used as widely as they were quite recently. In fact, technology is gradually disappearing, repeating the fate of floppy disks, compact cassettes, etc. True, the new development of scientists and engineers from China and Australia will be able to bring optical discs back from oblivion if they become in demand.

A joint team of engineers and scientists from Shanghai Polytechnic University and Melbourne Institute of Technology was able to create a new recording technology that can increase the disk capacity to 700 terabytes. This is much more than any other storage medium, including hard drives and SSDs.
Sparks 22 april 2021, 11:57