Australian University pioneers DVD with 1,000 TB capacity

[Brandon J.F.]

A team of engineers at Swinburne University of Technology in Australia have conquered that challenge by enabling storage up to 1,000 Terabytes of data, or 40,000 HD movies, onto a single DVD. The process they developed uses a secondary laser to refine the refraction limit of light, which is around 500 nanometers. Since light cannot shrink below that limit, the current technology cannot write information smaller than 500 nanometers. The Australian researchers employed two 500nm lasers. One actually writes data, and the other blocks the light beam, except for a sliver that is only 9 nanometers in length.

Read more at http://www.tweaktown.com/news/40973...ioneers-dvd-with-1-000-tb-capacity/index.html

 

[Wayne Morellini]

At last, still waiting for their bluedisk that promised something like one million CD's worth of info on a CD in the late 80's, still have the article. Last used as an acoustic optical third level server cache memory.

 

[Marc Wielage]

Hey, one disc that has every major Hollywood feature of the last 50 years! The studios will love that. :blink:

 

[Wayne Morellini]

Oh boy, this guy is incredible. I read that article, and he is saying that for all intents and purposes optical is dead for personal use, apart from what you can figure out from just sitting and thinking about it, he is not learning from history. I've figured out how to rapidly access and write optical maybe last century now, to such extent to make regular HDD defunct in terms of cost, speed and reliability. But just going on what these guys are doing, we see that it is very convenient and stable, and potentially cheap to do personal, professional and small business storage on optical without having to periodically recopy everything off hard drives (using programs prone to accumulative buffer copy verification and checksum errors. 13.8 billion years might simply mean that you are exponentially more sure your business records will last several years, and that your recordings will last 40 years.

What is really happening, is companies are more interested in tieing users to monopolistic online download services that will fail and leave consumers with a lot of money for NO SERVICE. This spirit of collusion for the currently vastly inferior and in future costly download services is too make money in essentially a pyramid like selling (something I don't accuse people of intentionally meaning to do). To pay for future redownloads and propping up of server costs, requires future sales to keep operational, eventually costs of old paid content can outweigh profit. However, reducing storage and download costs might eventually be low enough to survive the end of copyright. Anyway, so disk us an fashionable thing of the past, and the promised 300GB+ disks if turn years ago, where were they, so development of recordable disks has lagged. However if somebody can drop a reliable cheap and convenient 300GB-Terabytes optical storage solutions on desk then we are on again.

Disk storage is a fools paradise. There are certain things that should be addressed that are often not considered:

- off disk (not buffer cache, or other memory) bit for but verification.
- reemphasis of the recorded image.
- elimination of multiple copies of the exact same file in an archive.
- multiple time versions of the same file.
- Searchable file database (you type name or content, it comes up, like windows or good file software does).
- recording in a recoverable format (due to corruption).

Etc.

You don't usually find all these things with usual backup features in software. Hard drive longterm image reliability demands some of these features.

Anyway, sorry for the sloppiness of that reply, have had somebody interrupting me here.