300GB on a Disc the Size of a DVD?

Holographic Versatile Discs (HVDs) have been in the works for some time now by various companies, including InPhase Technologies (formerly part of Lucent) and Japan’s Optware. InPhase’s HVDs, scheduled for release in 2006, are said to hold 300GB of data, 60 times that of a conventional DVD with only a slight increase in size. That translates to more than a day’s worth of HD-quality video. Not to mention the drives themselves can read and write at ten times the speed a normal DVD drive. One of InPhase’s partners in HVD research, Maxell, is working towards even more storage on a 1.6TB disc