These tiny structures can be used for long-term five-dimensional (5D) optical data storage that is more than ... about the size of a conventional compact disc with nearly 100% readout accuracy.

This morning Hitachi demonstrated its ability to encode data onto ... density of a compact disc – but falls woefully short of the 1TB per square inch we see on today's magnetic storage devices.

Hitachi has managed to develop a long-term data storage solution it claims can preserve ... That puts in on par with your basic CD-R, but nowhere close to spacious (yet far less reliable) external ...