therealskywolf
Regular
aaaaa00 said:The EETimes article went up a couple hours ago.
http://www.eetimes.com/showArticle.jhtml?articleID=163100700
HD DVD-ROM going to 45-Gbyte capacity
Yoshiko Hara
EE Times
(05/10/2005 3:12 PM EDT)
TOKYO — Toshiba Corp. has developed a triple-layer HD DVD-ROM (read-only) disc with a 45-Gbyte data capacity, making it more competitive with the 50-Gbyte capacity achievable by the Blu-ray Disc format.
Demonstrated Tuesday at the HD DVD workshop at Media Tech 2005 in Las Vegas, the high-capacity DVD-ROM disc answers critics who contended the 30 Gbyte capacity of existing HD DVD-ROM discs puts its at a major disadvantage compared to the Blu-ray format.
Much of the recent talk surrounding both the HD DVD and Blu-ray formats has centered around a unified disc standard. But for the moment both formats remain competitors, leaving OEMs with more decisions in designing next-generation audio/video products.
The HD DVD camp may have scored a minor victory in the battle, as Warner Home Video and Universal Studios immediately endorsed the triple disc format.
Toshiba also announced a new hybrid format, double sided, dual layer HD DVD ROM disc with 30 Gbytes on one side and 8.5 Gbytes on the other side. Warner said that 77 percent of consumers surveyed are interested in purchasing the hybrid HD DVD products.
With the introduction of new discs, the HD DVD-ROM will be available as a 15-Gbyte single layer, single sided disc; 30-Gbyte dual layer, single sided disc; the 45-Gbyte triple layer disc; and the 30-Gbyte/8.5-Gbyte hybrid disc.
Toshiba emphasized that the triple layered disc does not sacrifice the high productivity of the HD DVD-ROM format. Memory-Tech Corp., a major disc replicator in Japan that supports the HD DVD format, has confirmed the new 45GB disc can be produced on their existing manufacturing lines for HD DVD discs with only minimal additional investment and production cost per disc.
Shiroharu Kawasaki, president and chief executive of Memory-Tech, said, "We have already started verification for volume production of triple layer discs, and we are confident of early verification as they are based on the 0.6-mm disc structure and established production technologies."
The triple layer disc is produced by bonding two 0.6-mm platters, the same as DVD disc production. The first recording layer of both platters is formed by injection, a widely used technique to produce ROM discs. For the dual layer platter, ultraviolet sensitive resin is coated on the first layer.
In the DVD family discs, so-called DVD-14 and DVD-18 have dual-layers on one side, and are used in limited applications, according to a Toshiba spokeswoman.
I guess that Toshiba isnt simply going to bend to sony....at lest thats the conclusion i take from that article, they now have something that almost defeats the advantages of BR.