Tuesday, 12 September 2006 Toshiba and Memory-Tech announced this week it has developed three-layered hybrid DVD/HD-DVD ROM disk that will boost the capacity of a DVD disc and will be playable on both conventional DVD players and on HD DVD players.Toshiba and Memory-Tech announced this week it has developed three-layered hybrid DVD/HD-DVD ROM disk that will boost the capacity of a DVD disc and will be playable on both conventional DVD players and on HD DVD players. The two companies will propose the new format to the DVD Forum and hope to make it commercially available early in 2007. The newly announced disc is the latest addition to the DVD TWIN format which was proposed in 2004 and was subsequently adopted as part of the HD DVD specifications. The DVD TWIN format is a single-sided, two-layered disc that can store DVD content on one layer and HD-DVD content on the other. The biggest drawback of the first generation TWIN disc was its limited capacity: support for 15GB of HD DVD content and 4.7GB of DVD content. The new proposed three-layered disc will offer support for two HD DVD layers and one DVD layer or two DVD layers and one HD DVD layer. This means that in a two-layer HD DVD configuration, the new disc will have a 30GB HD DVD capacity, plus 4.7GB of standard DVD capacity. Configured to maximize standard DVD content, the disc can support 8.5GB on two layers, plus 15GB of HD DVD content on the third layer. The developers say that in addition to providing greater storage capacity the new discs should be cost effective because the same disc replication machines used for dual layer DVD's can be used for the new three layer discs.