Scientists from China are currently working on an optical disc that could store up to 200 terabytes of data in the size of a DVD, as reported by IEEE Spectrum. This is made possible by storing data in three dimensions instead of just two. The scientists have developed a way to store the data on 100 layers of the disc. Even more could be possible in the future. 1.6 million gigabits on the size of a DVD discThe procedure has already been investigated in the past. However, a major obstacle to earlier research was that the optics used to read and write the data were limited to the size of the wave…