BluRay What Next?

Holographic Versatile Disc (HVD) 

Holographic versatile disc (HVD) is a holographic storage format that looks like a DVD but is capable of storing far more data. Prototype HVD devices have been created with a capacity of 3.9 terabytes (TB) and a transfer rate of 1 gigabit per second (1 Gbps). At that capacity, an HVD could store as much information as 830 DVDs or 160 Blu-Ray discs. 

Holographic Memory

Holography is a method of recording patterns of light to produce a three-dimensional object. The recorded patterns of light are called a hologram.

Most of us think of holograms as storing the image of an object, like the Death Star pictured beside. The holographic memory systems we're discussing here use holograms to store digital instead of analog information, but it's the same concept. Instead of the information beam encountering a pattern of light that represents the Death Star, it encounters a pattern of light and dark areas that represent ones and zeroes.