Posted on 02/24/2024 4:40:05 PM PST by Red Badger
a, Dual-beam configuration for super-resolution writing and reading. b, Spin-coating process for material addition, material diffusion and blank-disk molding. c, The capacity of a single 3D nanoscale disk is approximately equivalent to that of a petabit-level Blu-ray library or an HDD data array. Credit: Nature (2024). DOI: 10.1038/s41586-023-06980-y
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A team of photonic engineers affiliated with several institutions in China has developed a new type of optical DVD that is capable of holding up to a petabyte of data. The group used a new material to coat the DVDs and new laser techniques to write data. The results are published in Nature.
The type of DVDs currently used to hold movies and data have a capacity of 4.5 gigabytes—enough to store approximately two hours of video. Data is written using a laser to etch a series of zeros and ones onto its surface. In this new effort, the team in China found a way to store significantly more data on a DVD using an entirely new approach.
Their new method involves storing data in 3D instead of as a single layer. The team found they were able to store data on a single disk with up to 100 layers. To create multiple layers on a disk, the team developed a special coating and then developed a way to etch the individual layers using special patterns of light and a dye in the coating that allowed for etching at the nanoparticle scale. This allowed them to store data at an unprecedented level.
The research team acknowledges that there are still some challenges to overcome before their DVDs can be commercialized. Currently, the process of writing data to the disk is far too slow and it uses a lot of energy—problems that the team believes can be corrected. Also, it is not yet clear how much it would cost to manufacture such DVDs or how much consumers might be charged.
Still, the research team is optimistic that they are on the right track and expect to be selling DVDs capable of storing massive amounts of data, not only to consumers, but also to data storage facilities, businesses and media companies looking to improve the quality of their products.
More information:
Miao Zhao et al, A 3D nanoscale optical disk memory with petabit capacity, Nature (2024).
DOI: 10.1038/s41586-023-06980-y
Journal information: Nature
If you mean James Bond 007 movies, sure.
Think of how much you’ll save on streaming subscriptions!
“Honey, have you seen our DVD with the million movies?”
“I’ve got some bad news, dear. The dog ate it today.”
And it STILL wouldn’t hold all the porn ever made.
“One little scratch can wipe out all the movies made between 1976 and 1979.”
It’s only fair. One little scratch on the battery pack wipes out your EV, too.
But if you leave it in a hot car they’re gone forever a million movies you could never live long enough to watch
Just in time before DVDs go extinct.
Like the one where Apollo Creed starts the school for inner City children on Pluto?
LMAO!
Friday the 13th: 12+ Movies 1980
Star Trek: 12+ Movies 1979
James Bond: 23+ Movies 1962
Godzilla: 28+ Movies 1954
Carry On: 31 Films from 1958 - 1992
The Marvel Cinematic Universe: 31+ Movies
That doesn’t seem anywhere near one million.
i added em up=- it’s pretty close-
Ten of them worth watching.
India could fill up the disc all by itself...................
Some years ago, the official line was that Blu-ray was the last optical format, then a Sony VP stated that there was higher def higher density tech was coming. This looks like a good press release but not a commercial prospect, even if the whole thing weren’t just pie in the sky.
...which means it’s already in use by the intelligence agencies to store phone calls, video chats, text messages, and web posts.
One for Nicolas Cage movies and one for everything else.
Better question, are there 1 million movies worth saving?
Sorted and indexed.....................
while storage size is good...
seek times, read, and write speeds as well as throughput are the characteristics by which modern storage is gauged
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