How to fit 300 DVDs on one disc
Found on BBC News on Tuesday, 19 May 2009
A new optical recording method could pave the way for data discs with 300 times the storage capacity of standard DVDs, Nature journal reports.
The scientists used the nanoparticles to record information in a range of different colour wavelengths on the same physical disc location. This is a major improvement over traditional DVDs, which are recorded in a single colour wavelength with a laser.
Their approach used 10-layer stacks composed of thin glass plates as the recording medium.
Hopefully those discs are also reliable. It's relatively easy and cheap to store large amounts of data, but the question is for how long it can be kept without any degration. Nothing is more annoying than finding a disc 10 or 15 years later only to figure out that it's useless.