Data is read from a normal CD by shining a laser at a tiny line with bumps in it. it's reflected back and recorded as a 1; whenever there's no bump, it's recorded as a 0.
5D discs, by comparison, store information within their interior using tiny physical structures known as "nanogratings." Much like those bumpy lines in the CDs, these change how light is reflected, but instead of doing so in just two "dimensions," the reflected light encodes five — hence the name.
The changes to the light can be read to obtain pieces of information about the nanograting's orientation, the strength of the light it refracts, and its location in space on the x, y, and z axes.
"But what we can guarantee is that we have the ability to store the culture, language, and essence of the human race in a simple piece of glass.
"Through Glass" is the second single from the rock band Stone Sour's second album Come What(ever) May. along with its music video on June 9, 2006, and was released on July 22, 2006, just over one week before the release of the album. Is it just the same drivel from the same replicate over and over again? It has its place, but when you're basically cornering the market and making it very hard for anyone who actually writes their own music to get ahead, then it's wrong and that's really why I wrote this song.
These extra dimensions are why 5D discs can store data so densely compared to regular optical discs.
A Blu-ray disc can hold up to 128GBs of data (the same as the biggest i Phone), while a 5D disc of the same size could store nearly 3,000 times that: 360 terabytes of information.
Another set of people are also plywood cutouts who are then taken away.
As the video continues, the whole set is shown to be made up of plywood cutouts, which are taken away.
These discs can potentially last for so long because glass is a tough material which needs a lot of heat to melt or warp it, and it's chemically stable too.
(Think about all those science experiments that use glass beakers to contain reactive materials without anything bad happening to them.) This makes the 5D discs safe up to temperatures of 1,000°C, say the researchers.
The method is called five-dimensional data storage, and was first demonstrated in a paper in 2013.