TDK Shipping ''Bare'' Type Blu-ray Disc Samples
December 14, 2005
Tokyo, JP - TDK announced that is has commenced shipping mass-production samples of its bare-type (cartridge-less) BD-R (write-once type) and BD-RE (rewritable type) Blu-ray Discs. The four new products include:
-- BD-R25 (write once, single-side, single-layer, 25GB)
-- BD-R50 (write once, single-side, dual-layer, 50GB)
-- BD-RE25 (rewritable, single-side, single-layer, 25GB)
-- BD-RE50 (rewritable, single-side, dual-layer, 50GB)
The company says that to ensure the new discs will be resistant to scratches and dirt, even without external cartridges, they will be coated with TDK's new DURABIS 2 hard coating. DURABIS 2 technology has been specifically formulated for Blu-ray Discs.
Mass production at TDK's Chikumagawa Techno Factory, which specializes in optical discs, will commence upon issue of licensing for the bare disc.
The company reports these main features of BD-R and BD-RE Blu-ray Discs:
1. DURABIS 2 coating provides significantly greater resistance to scratches and dirt (particularly fingerprint smudges), ensuring safe use even without a cartridge.
2. Unique high-precision spin coating creates a supremely flat cover layer, resulting in highly stabilised recording and playback.
3. The BD-R disc utilises a recording layer of an inorganic material which is unaffected by exposure to light, thus offering outstanding archivability.
4. The BD-RE disc utilises a highly sensitive phase-change dye in the recording layer that realises stabilised characteristics even after as many as 10,000 rewrites.
5. High-precision stacking technology precisely overlays disc layers, delivering stabilised characteristics on both the upper and lower recording layers in a single-sided, dual-layer (50GB) disc.
For more information visit:
www.tdk.co.jp/tetop01/index.htm
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