Yup, you read that right: 50 terabytes of data.

Professor Renugopalakrishnan, an Indian-born scientist, is currently developing DVDs that are coated with light-sensitive protein. These DVDs will be able to store 50 Terabytes (50,000 GB of data).

The microbe proteins called bacteriorhodopsin (bR) make up the said protein layer. This captures and stores sunlight and converts it into chemical energy. The light shining on the said microbe proteins (bR) will be converted into a series of intermediate molecules that will have unique color and shape before returning to its "ground state."

Hopefully, when this same technology is applied to other external devices (like the DVD), they will also be able to store this much data as well.