Squeezing massive quantites of data onto optical media with holographic technology is not new, but recently, researchers found a method of doing this with regular HD DVDs.

The good news came from the University of Berlin, where smart-folk developed a new microholographic recording method that can put nanostructures into the entire volume of a DVD, not just on the surface, in order to store data. This research effort has been named the "Microholas project." The project was started about 3 years ago, and it appears that it is a total success: the prototype can microholographinize 500 gigs onto a disc, and the researchers believe that reaching the 1 TB mark is very much possible.