DVD+RW Double Layer 2.4X Disc Specification Ready for Distribution to Licensees; World's First Double Layer Rewritable DVD.EINDHOVEN, The Netherlands -- The DVD+RW Alliance An industry consortium devoted to promoting rewritable and write-once DVD standards. Founded in 1997 by HP, Philips, Sony and others, it developed the DVD+RW specification as an evolution of the CD-RW format. , a voluntary association of industry-leading personal computer, optical storage and consumer electronics manufacturers that support the Plus format for DVD DVD: see digital versatile disc. DVD in full digital video disc or digital versatile disc Type of optical disc. The DVD represents the second generation of compact-disc (CD) technology. recording, has announced the release of version 1.0 specifications for 2.4X rewriting re·write v. re·wrote , re·writ·ten , re·writ·ing, re·writes v.tr. 1. To write again, especially in a different or improved form; revise. 2. on Double Layer DVD+RW (DVD+Read Write) A rewritable (re-recordable) DVD disc for both movies and data from the DVD+RW Alliance. DVD+RW media can be read on DVD-Video players and computer DVD-ROM drives. media by HP, Mitsubishi Kagaku Media/Verbatim, Royal Philips Electronics, Ricoh, Sony Corporation, Thomson Inc. and Yamaha. DVD+RW media and writers are designed to rewrite up to a full 8.5 GB DVD+RW. The new 2.4X DVD+RW Double Layer discs will be based on new phase-change materials, which enable writing on both the semi-transparent layer 0 and the more reflective layer 1. Due to its special characteristics, the new DVD+RW Double Layer media will only be read and write compatible with new specially designed recorders and read out devices. The read out reflectivity re·flec·tiv·i·ty n. pl. re·flec·tiv·i·ties 1. The quality of being reflective. 2. The ability to reflect. 3. on both layers of the new media is very low when compared with traditional single layer DVD+RW media. Red laser reflectivity is specified between 5 and 10 percent for the new media and 15 to 20 percent for traditional single layer media. The new Double Layer DVD+RW specification includes 8cm disc format and will increase recording time or data capacity, nearly doubling in any application. About DVD+R/+RW The DVD+R/+RW format is capable of recording up to 8.5 gigabytes of digital video, images or data. This equates to the storage capacity of up to eleven CD discs and the potential to store thousands of digital photographs or nearly doubling digital video recording time, compared to single layer disc. About the DVD+RW Alliance The DVD+RW Alliance is a voluntary group of industry-leading personal computer, optical storage and consumer electronics manufacturers. The companies promote the universally compatible, rewritable DVD+R/+RW format that enables true convergence The angle at which one meridian is inclined to another on the surface of the Earth. See also convergence. between personal computing Refers to users working on their own computers rather than a terminal to a mainframe. Sometimes, the term refers to using computers at home for work and/or entertainment in contrast to business use only. See personal computer. and consumer electronics products. Further details about the DVD+RW Alliance and member companies can be found at http://www.dvdrw.com. Product or service names mentioned herein are the trademarks of their respective owners. |
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