Memory-Tech Corporation and Toshiba announced that they have jointly developed a dual-layer ROM (read-only) disc that can store content in both the HD DVD and DVD formats.
“The newly developed ROM disc has a single-sided, dual-layer structure. The upper layer, closer to the optical head, stores data in the DVD format, and the lower layer stores HD DVD data. The DVD layer has a 4.7GB capacity, satisfying the specification of current DVD discs, while the HD DVD layer can store 15GB. The DVD layer can be played back on currently available DVD players.
The new disc makes it possible for consumers to view DVD content on standard DVD players and, after purchasing an HD DVD player, to enjoy high definition content on the HD DVD layer from the same disc. The new disc structure also increases options for content providers; they can provide the same content in two formats, or use the HD DVD layer for a feature movie and the DVD layer to store promotional videos or audio content, including the movie soundtrack.”
