kumarmohit
Technomancer
Japanese electronics manufacturer Panasonic has created a 4-layer, 100GB Blu-Ray disc that it claims will last for 100 years by using Te-O-Pd, a tellurium suboxide palladium-doped phase-change recording film. The film is said to have a high transmittance and crystallization rate which allows them to layer it on without losing data quality.
Source: *www.afterdawn.com/news/archive/8045.cfm