PCDVD數位科技討論區 - JVC 將推出世界第一款支援單面雙層 DVD-RW Disc

此款新技術稱為“N-Strategy”，採用新的精密薄膜形成技術，並且可以容易抹除光碟片上的資料，且容易生產雙層 DVD-RW 光碟，降低 DL 的不良率。

Victor Company of Japan, Ltd. (JVC)目前持續研發中，也是第一個提出single-sided dual layer DVD-RW disc 技術的領導者。

Victor Company of Japan, Ltd 目前致力於發展此一技術，單面 4.7 GB 的 DVD-RW 光碟能記錄多達11小時的影像，但透過此一新技術研發出來的單面雙層 DVD-RW 光碟，不再讓DVD+R DL專美於前，Victor Company of Japan, Ltd 預言將廣泛推廣此技術，應用在家用 DVD Recorder動和家用 PC 上。

Victor Company of Japan, Ltd 將持續開發此技術，也將此研發技術提議DVD Forum 論壇，試圖讓各家採用他們 single-sided dual layer DVD-RW 技術。

Features of Single-sided, Dual Layer DVD-RW Disc Technology

1. Single-sided, Dual Layer Structure Based on Newly Developed High Sensitive Recording Film,a New Recording Method “N-Strategy”*2, which Enhances Erasability, and Precision Thin Film Forming Technology

Dual layer DVD-RW disc technology utilizes a semi-transparent first recording layer (L0 layer) with excellent transmission performance from the signal read side. With conventional DVD-RW disc technology, the use of a thinner recording layer in order to achieve improved transmission performance

results in less laser beam absorption. The resulting drop in laser absorption is insufficient to form and erase marks (recording signal patterns).

The new single-sided, dual layer DVD-RW disc technology makes use of a high sensitive recording film that enables excellent transmission performance and signal rewritability and a new recording method “N-Strategy”*2, which enhances erasability. The high sensitive recording film and “N-Strategy”*2 are based on JVC’s proprietary phase-change design technology developed for high speed DVD-RW discs. Furthermore, JVC employs precision thin film forming technology based on nanotechnology to deliver the world’s first single-sided, dual layer DVD-RW disc technology with an 8.5GB storage capacity.

2. Facing Film Bonding Method for Improved Production Efficiency

JVC has developed a facing film bonding method in which the L1 and L0 recording layers are each formed on separate substrate, but using a different forming order. The recording sides formed on each recording layer are then bonded in an opposed fashion, separated by a space layer. The two recording layers are manufactured as separate processes prior to bonding resulting in improved production efficiency and mass production capability using conventional manufacturing equipment.

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