A team of researchers from the Institute of Multidisciplinary Research for Advanced Materials of located at Tohuku in Northern Japan said it has found a way to multiply the amount of data that can be stored on a DVD or CD by a factor as much as nine.
They have done so by shaping the pits on a DVD’s surface, which are usually flat, like “V”s. The researchers said a V-shaped pit can hold more flat pits, making the development of 42GB DVDs possible.
This fascinating technology has two main drawbacks. Firstly, the new super discs cannot be used in existing CD/DVD drives. It is secondly impossible to apply the new technology to Blu-ray discs.