Imation India Pvt. Ltd. has announced the availability of the TDK LoR’s (Life on Record) new Blu-ray Discs capable of recording at 4x speed. The four new TDK LoR Blu-ray Discs include the BD-R25 (single-sided, single-layer, 25GB) and BD-R50 (single-sided, dual-layer, 50GB) write-once-type discs, as well as the BD-RE25 (single-sided, single-layer, 25GB) and BD-RE50 (single-sided, dual-layer, 50GB) rewritable discs.
TDK LoR Blu-ray Discs incorporate a recording layer comprised of inorganic material. The discs are further highlighted by TDK LoR’s exclusive Durabis 2 hard coating technology, an ultrasmooth cover layer created through the innovative spin-coating method and a host of other advanced TDK LoR technologies that enable the creation of high-reliability media.
A TDK LoR 4x 25GB Blu-ray Disc can be fully recorded in 22 minutes, and a TDK LoR 4x 50GB Blu-ray Disc can be fully recorded in 45 minutes, cutting the recording time in half in comparison with 2x Blu-ray Disc media, said the company.
A recording layer boasting high sensitivity is utilized for compatibility with 4x recording (144Mbit/sec. transfer rate). 4x recording halves recording time compared with the previous 2x disc. 4.7GB of data can be copied in less than five minutes, which is comparable to a DVD-R recording speed of 16x.
Since the area of the laser spot on the Blu-ray Disc is small, about one-fifth that of the DVDÂ scratches or dirt on the recording surface can have an especially detrimental effect, causing errors. Durabis 2 overcomes the problem by offering significantly higher resistance to scratches and exceptional resistance to dirt and grime, particularly fingerprint smudges, according to Imation.
Previous write-once optical media such as CD-R and DVD-R used organic dye for their recording layers. Write-once type BD-R media is based on a completely new concept for the recording material wherein a two-layer structure composed of silicon and copper alloy inorganic materials is utilized. When heated by the recording laser beam, these melt, and the alloy become a composite to form recording marks. Because the material is inorganic, said the company, it is not affected by light and offers superior archivability.
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