Dual-layer DVD+R Demonstrated, Doubling Disc Capacity
October 09, 2003
Tokyo, Japan - embers of the DVD+RW Alliance are demonstrating the ability to make a dual layer DVD+R disc compatible with the dual-layer DVD-ROM standard (DVD9).
The dual layer DVD+R disc nearly doubles disc storage capacity from 4.7 Gbytes to up to 8.5 Gbytes, while remaining compatible with existing DVD Video players and DVD-ROM drives. Demonstrations of the dual layer DVD+R are reportedly being held at the DVD+RW Alliance booth at CEATEC JAPAN 2003, now underway in Japan.
Final specifications and the format book are expected to be available within this year and recordable media and recorder products that will use this new dual layer technology are expected in 2004.
Member companies include Dell, Hewlett Packard, Mitsubishi Chemical/Verbatim, Philips, Ricoh, Sony, Thomson and Yamaha.
Adding an additional storage layer will nearly double the data storage capacity of a current DVD+R disc, the Alliance describes. Both layers can be accessed from the same side of the disc, meaning there is no need to turn over the disc to benefit from the extra recording capacity. The technology will allow consumers to record DVD quality video up to 4 hours and up to 16 hours in VHS video quality on a single dual layer DVD+R disc and will enable PC users of dual layer DVD+R discs to enjoy increased storage capacity of up to 8.5 Gbytes.
A feature and performance roadmap has been developed for the DVD+R/+RW format, and compatibility with the installed base of DVD Video players and DVD-ROM drives is key. Dual layer recording is yet another element of format strategy designed to bring compatible, simple and functional DVD recording to users.
For more information, visit
www.dvdrw.com
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