More data storage? Hereâ€™s how to fit 1,000 terabytes on a DVD
We live in a world where digital information is exploding. Some 90% of the worldâ€™s data was generated in the past two years. The obvious question is: how can we store it all?
In Nature Communications today, we, along with Richard Evans from CSIRO, show how we developed a new technique to enable the data capacity of a single DVD to increase from 4.7 gigabytes up to one petabyte (1,000 terabytes). This is equivalent of 10.6 years of compressed high-definition video or 50,000 full high-definition movies.
So how did we manage to achieve such a huge boost in data storage? First, we need to understand how data is stored on optical discs such as CDs and DVDs.