This is not a new development. Holographic discs have been developed to this point for a good couple of years now. From what I remember there are still many concerns with the proposed format. It requires two physical lasers. It is not a true digital format. As I understand it, they are wanting to release the format in 12cm form - the standard disc size. Also, the disc you mentioned holds 200GB of information, not 1 TerraByte (1,000 GB)!! Optware might CLAIM that the discs could (theoretically) hold terrabytes of data, but they are only developing for commercial use 200GB recordable, and 100GB read-only discs, ten times smaller than 1 terrabyte! The format won't be released before 2008 either, by which time it's entirely possible a rival format will be able to compete with the 100GB of storage offered by the format.