Feeds

Sharp develops 100GB optical disc

Next-gen dual-layer Blu-ray Disc?

  • alert
  • submit to reddit

Beginner's guide to SSL certificates

Sharp has developed a two-layer optical disc which could boost the capacity of the next-generation Blu-ray format.

The 100GB disc uses what the Japanese giant calls a "super-resolution functional film". Sharp came up with such a film for single-layer media last year, but this week's announcement centres on an extension of the technology that provides a sufficient level of transparency to enable multi-layer discs.

In a dual-layer disc, the data-storage layer closest to the laser head needs to be both reflective - to allow the data to be read - yet be sufficiently transparent that enough laser light can pass through to focus on the higher data-storage layer and then pass through again after it's reflected off layer two's surface.

The Sharp disc is not BD-compatible, but a company representative said that the firm was considering tweaking the technology to meet the data-pit size specifications laid down by the Blu-ray Disc Association, an EETimes report notes.

Blu-ray supporter TDK has already developed a 100GB BD, but it's a four-layer job that bonds two regular 50GB dual-layer BDs back to back, forcing users to flip it over to access the second 50GB.

HD DVD backer Toshiba, meanwhile, has created a 45GB HD DVD by gluing a 15GB single-layer disc onto the back of a 30GB dual-layer HD DVD. ®

Related stories

Toshiba and Microsoft tighten the knot
Blu-ray, HD DVD merger talks scrapped
TDK touts 100GB recordable Blu-ray Disc
Alliance touts holographic disc 'revolution'
Toshiba unveils 45GB HD DVD
Toshiba slams Blu-ray/ HD DVD convergence claims
Sony to add Blu-ray and DSD to Vaio
Apple backs Blu-ray

Intelligent flash storage arrays

More from The Register

next story
The cloud that goes puff: Seagate Central home NAS woes
4TB of home storage is great, until you wake up to a dead device
Azure TITSUP caused by INFINITE LOOP
Fat fingered geo-block kept Aussies in the dark
You think the CLOUD's insecure? It's BETTER than UK.GOV's DATA CENTRES
We don't even know where some of them ARE – Maude
Intel offers ingenious piece of 10TB 3D NAND chippery
The race for next generation flash capacity now on
Want to STUFF Facebook with blatant ADVERTISING? Fine! But you must PAY
Pony up or push off, Zuck tells social marketeers
Oi, Europe! Tell US feds to GTFO of our servers, say Microsoft and pals
By writing a really angry letter about how it's harming our cloud business, ta
SAVE ME, NASA system builder, from my DEAD WORKSTATION
Anal-retentive hardware nerd in paws-on workstation crisis
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Choosing a cloud hosting partner with confidence
Download Choosing a Cloud Hosting Provider with Confidence to learn more about cloud computing - the new opportunities and new security challenges.
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.