Thursday, November 20, 2014
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Intel To Release Chromecast-like Thumb-sized PCs
Google Contributor Lets You Pay And And See No Ads In Your Favorite Sites
Intel Gives Upbeat Outlook for 2015 Revenue
Hon Hai, Innolux Invest In New Flat-panel Plant In Taiwan
"NotCompatible" Malicious Software Spread on Android Phones
Kindle Owners get Access To Washington Post app
Microsoft Slashes Prices Of Xbox One, Surface 3 For Black Friday
Updated Billboard To Include Streams, Track Sales
Active Discussions
cdrw trouble
CDR for car Sat Nav
DVD/DL for Optiarc 7191S at 8X
Copied dvd's say blank in computer only
Made video, won't play back easily
New Features In Firefox 33
updated tests for dvd and cd burners
How to generate lots of different CDs quickly
 Home > News > Optical Storage > New DVD...
Last 7 Days News : SU MO TU WE TH FR SA All News

Thursday, October 19, 2006
New DVD-RW DL Media Incompatible With Current Hardware

The DVD Forum released a notification today for the companies engaged in manufacturing of Dual Layer DVD-RW discs, about the compatibility of the new media with currently available players/burners.

The DVD Forum approved the DVD specifications for Re-recordable Disc for Dual Layer (DVD-RW for DL) (Part 1 PHYSICAL SPECIFICATIONS Version 2.0) in September 2006. The new disc offers a capacity of 8.54GB per side for a 12cm disc and a 2.66GB per side for an 8cm disc. According to the DVD Forum. the new Ver.2.0 discs should only be used with hardware which conforms to Ver.2.0, and not with hardware which conforms to the previous versions of DVD Re-recordable media, currently available on the market (Ver.1.0, Ver.1.1 or Ver.1.2).

The Non-Ver.2.0 hardware cannot record any data onto a Ver.2.0 Disc. When Non-Ver.2.0 hardware tries to record data onto Ver.2.0 Disc, the disc cannot be recognized as usable media. Moreover, such improper use of a Ver.2.0 Disc with Non-Ver.2.0 hardware may result in damage to the disc surface and/or the data recorded on the Ver.2.0 Disc.

In addition, the new DVD-RW DL media are not readable with Non-Ver.2.0 hardware.

In general, the compatibility of the new DVD-RW DL media could be achieved with some modifications made on the playback devices. In the table below you can see the main parameters of the DVD-RW, DVD-RW DL and DVD-ROM DL media:

General Parameters DVD-RW Dual Layer DVD-RW Dual Layer DVD-ROM
User data capacity
4.7 GB
8.54 GB
Track pitch
0.74 μm
Channel bit length
18% to 30%
5% to 10%
18% to 30%
> 0.60
> 0.50
> 0.60
0.15 min.
0.20 min.
< 8.0%
< 9.0%
< 8.0%
Track path
Parallel and opposite
Reading power
0.7mW max
1.0mW max
Recording speed
Max. 6x
Addressing method
Woobble & LPP

The basic differences among the disc formats is the reduced reflectivity of the DVD-RW DL (5% -10%), as well as the increased reading power required to read the DVD-RW DL disc (1.0mW max).

The DVD-RW DL discs are adopting the Restricted overwrite and layer jump recording modes, already applied to DVD-R DL media. The recording order shall be from layer 0 to layer 1, and layer 1 on the recorded layer 0 is filled up with data at finalization. However, the writing strategy (laser pulse) has been modified compared to that used for DVD-R DL media.

Sony Doubles MICRO VAULT Storage Capacity        All News        Fujifilm to Show MicroFilm Archive System at ARMA 2006
Nero Updates Nero Burning Rom to v7.5.7.0     Optical Storage News      Konica Minolta and Plasmon Form Strategic Alliance to Market Plasmon's UDO Archive Storage Solutions

Get RSS feed Easy Print E-Mail this Message

Related News
The DVD Forum Goes Into Hibernation
DVD Forum's Suggestions On Regional Codes For Players and Discs Sold in the Baltic Countries
DVD Forum Seeks Industry Feedback on Future Plans
DVD Download License Completed
Sensio 3D Format Standardized in DVD Standard
DVD Forum Approves DVD-Download DL Specifications
The DVD Forum May Add 3D Technology to DVD
DaTARIUS Opens First European HD DVD Class-A Verification Laboratory
DVD Forum Approves "HD DVD China" Logo
DVD Forum Approves Recording of HD DVD Content on Red-laser Recordable Discs
DVD Forum to Showcase HDi Applications At IFA
JVC Unveils First DVD-RW DL Media

Most Popular News
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .