Awesome

More data storage? Here's how to fit 1,000 terabytes on a DVD

In The Conversation today:

 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.

They also point out:

 Some 90% of the world’s data was generated in the past two years.

Their two light beam technique, which reduces the "dot" size when burning a DVD, is said to be:

...cost-effective and portable, as only conventional optical and laser elements are use, and allows for the development of optical data storage with long life and low energy consumption, which could be an ideal platform for a Big Data centre.

I'm not sure if that means it won't be turning up on a home PC, but still, it sounds a remarkable advance.