Feeds

Toshiba unveils 45GB HD DVD

Layer cake

  • alert
  • submit to reddit

Top three mobile application threats

Toshiba yesterday introduced a higher capacity version of its HD DVD blue-laser disc format to meet the challenge posed by rival optical storage system, Blu-ray Disc (BD).

The prototype holds 45GB, just shy of BD's 50GB storage capacity. But unlike BD, which requires only two 25GB data-storage layers to provide that capacity, the new HD DVD needs three 15GB layers.

The three-layer disc is single-sided, but comprises a single-layer HD DVD glued onto a dual-layer disc. That means it's going to cost more. Toshiba wheeled out disc makers Cinram and Memory Tech to say how the new disc would incur only "minimal" extra production costs. The trouble is, HD DVD production lines will still need to be upgraded, so supporting the new disc will eliminate some or possibly all of the production price advantage HD DVD has over BD. And the capacity is still 5GB less.

And the new disc will necessitate new players with laser read heads capable of focusing on the upper layer. This isn't rocket science - it's just an extension of what heads are already doing with dual-layer discs. But it will require work to ensure the head gets meaningful data out of the reflected light after it has been partially scattered by the two intervening layers. This will make the read heads more complicated, and so more expensive.

Toshiba will also need to get these into the market quickly if it's to avoid pissing off consumers saddled with HD DVD players that can't read the new, higher capacity discs that all the latest movies are shipping on. Early adopters may not care, but mainstream buyers will.

Still, the three-layer disc addresses the key concern over the HD DVD format: its ability to hold the longest-running movies - think The Lord of the Rings extended editions - in the HD TV format's highest resolution settings.

Toshiba said the 45GB disc has already won the approval of the DVD Forum, the DVD standard's governing body. The Forum has also approved Toshiba's dual-mode disc, which bonds a dual-layer DVD onto the back of a dual-layer HD DVD, allowing content providers to support current- and future-generation players with the same product. Toshiba announced the dual-mode disc, since when JVC has come up with a similar dual-mode BD. ®

Related stories

Toshiba slams Blu-ray/ HD DVD convergence claims
Sony to add Blu-ray and DSD to Vaio
Sony 'open' to Blu-ray Disc/HD DVD bonding talks
JVC unveils first one-side, two-layer DVD-RW disc
Alliance touts holographic disc 'revolution'
Studios announce HD DVD movie release lists
JVC preps dual DVD/Blu-ray disc
Toshiba launches HD DVD consortium

Combat fraud and increase customer satisfaction

More from The Register

next story
This time it's 'Personal': new Office 365 sub covers just two devices
Redmond also brings Office into Google's back yard
Kingston DataTraveler MicroDuo: Turn your phone into a 72GB beast
USB-usiness in the front, micro-USB party in the back
AMD's 'Seattle' 64-bit ARM server chips now sampling, set to launch in late 2014
But they won't appear in SeaMicro Fabric Compute Systems anytime soon
Brit boffins use TARDIS to re-route data flows through time and space
'Traffic Assignment and Retiming Dynamics with Inherent Stability' algo can save ISPs big bucks
Microsoft's Nadella: SQL Server 2014 means we're all about data
Adds new big data tools in quest for 'ambient intelligence'
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
SANS - Survey on application security programs
In this whitepaper learn about the state of application security programs and practices of 488 surveyed respondents, and discover how mature and effective these programs are.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.