Sunday, January 25, 2015
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
NVIDIA Comments On GeForce GTX 970 Memory Allocation Reports
Google Comments On Lack Of Security Patches On Older Android Phones
Sony is Offering Old Games To Settle The 2011 PlayStation Network Breach
Sony Postpones Earnings Announcement
January Windows 10 Build Released Through The Windows Insider Program
Flexible Computers Are Stil Away From Reality
China Denies Microsoft Outlook Hacking Allegations
A Look at Microsoft's New Spartan Browser
Active Discussions
HELP!!!
full screen wide screen
UDF errors
Hi
The Simplest Way to Download KODAK HERO 7.1 Driver
About the restriction problem of chapter quantity in DVD
Booktype utilities for LiteON and OEM DVD Recorders
downgrade a nero vision 5 project to nero vision 2
 Home > News > General Computing > Dual-la...
Last 7 Days News : SU MO TU WE TH FR SA All News

Wednesday, October 08, 2003
Dual-layer 8.5GB recordable DVDs


There is optimistic news at this week's Ceatec Japan 2003 exhibition for users looking to squeeze extra data onto a recordable DVD disc. Companies are demonstrating dual-layer versions of both DVD-R and DVD+R discs that offer almost double the data capacity of today's standard blank DVD discs.

Pioneer Corp., Koninklijke Philips Electronics NV and Mitsubishi Kagaku Media Co. Ltd., the latter better known by its Verbatim brand name, have said they have developed prototype discs that can hold up to 8.5 gigabytes (GB) of data and will show them at Ceatec, according to statements from the companies.

Most DVD-R and DVD+R discs on the market at present offer a data storage capacity of 4.7GB. That's plenty of space for your family snapshots and word processor file backups, but this space gets filled up fast when large multimedia files, such as video clips, are recorded onto the disc.

In order to store more data, the developers of the DVD format specified several additional type of disc when the format was decided on in the mid-nineties.

The simplest of these disc types, and the most common today, is the 4.7GB single-sided, single-layer disc -- that is, a single recording layer that can be used on one side only.

Developers also included support for double-sided discs, double-layer discs and a combination of the two. Mitsubishi Kagaku is already selling double-sided, single-layer discs which double the data capacity to 9.4GB by allowing recording on both sides of the disc although these require the user to eject, flip-over and reinsert the disc when wanting to switch from side one to side two.

The prototype discs from Pioneer, Philips and Mitsubishi Chemical have a single recording side, like current discs, but two recording layers. By adjusting the focus of the laser beam each layer can be targeted without disrupting data on the other. This allows for up to 8.5GB of data to be stored on a single-sided disc, which isn't quite the data capacity of a double-sided disc but can all be accessed without the hassle of turning the disc over.

Dual-layer discs are already supported under the DVD-Video format and some commercial video discs already use the format. If you've seen a momentary pause in the middle of a DVD movie that's likely the player switching from layer one to layer two.

Pioneer, which developed the DVD-R prototype, still has some work to do on the technology and will propose it as a standard to the DVD Forum when its development is complete, it said in a statement. Philips, which produced the DVD+R prototype with Mitsubishi Kagaku, said its disc is expected to be ready for commercial launch in 2004.

Compatibility with existing drives and players might be an issue. Pioneer said its disc can be played back on most existing DVD players while Philips said ensuring compatibility with existing players was one of its prime concerns when developing the DVD+R disc. Both companies noted users will need to purchase new drives if they want to write to the new discs and Philips said drives are expected with the discs in 2004.


Previous
Next
Maxtor Quickview Hard Drives in new Toshiba HDD & DVD Video Recorder        All News        Maxtor Quickview Hard Drives in new Toshiba HDD & DVD Video Recorder
Maxtor Quickview Hard Drives in new Toshiba HDD & DVD Video Recorder     General Computing News      Maxtor Quickview Hard Drives in new Toshiba HDD & DVD Video Recorder

Get RSS feed Easy Print E-Mail this Message

Related News
Pioneer HDJ-2000MK2 Headphones Target Pros
Pioneer DJ Unveils New Professional Studio Headphones
Pioneer XDJ-RX Rekordbox DJ System Comes With a Built-in Screen
Pioneer Releases Solid-state Drive
Verbatim-MKM To Manufacture And Sell Archival-Grade M-Discs
Philips Fidelio NC1L Headphones Go battery-free When Connected to Your iOS Device
New Pioneer BDR-S09J-X BD Is Optimized For Audio Playback
Pioneer at CES 2015
TP Vision To Integrate Android into Philips TVs
Philips and Nintendo Resolve Patent Disputes
Pioneer To Release The BDR-XU03JM Portable Blu-ray Drive For Macs
New Pioneer XDJ-1000 Multiplayer Offers Touchscreen, Wi-Fi Connectivity, and rekordbox

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2015 - All rights reserved -
Privacy policy - Contact Us .