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45% buy the item featured on this page: TDK BD-RE25JC2XE BD-RE 25GB Blu-ray Disc Jewel Case £1.66 |
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18% buy Infiniti Classic Bd-re Blu-ray 25GB Slim Jewel Case (5pk) - Rsbdrejc £12.85 |
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13% buy SONY BD-RE Blu-ray (25GB) rewritable disc £6.70 |
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12% buy Verbatim 43614 BD-RE Rewritable 25GB Blu-Ray Disc Jewel Case £5.73 |
| Brand: | TDK |
| Mfr Part Number: | BD-RW252X |
Product details
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The advent of Blu-ray technology has led to the introduction of high capacity storage discs to meet the demand caused by the rapid growth of high definition television (HDTV).The Blu-ray discs get their name from blue laser technology. The shorter wavelength of the laser is the reason that it is blue in colour. The blue laser has a wavelength of 405nm compared with the wavelength of 650nm for DVD which utilises red laser technology. The benefit of having a blue laser with a shorter wavelength means it is possible to write smaller data pits and therefore vastly increase the amount of data on the disc. 2006 saw the introduction of Blu-ray and HD DVD discs. Both offer 3 to 5 times the storage capacity of a standard recordable DVD disc, enabling the recording, rewriting and playback of high definition video (HD). Blu-ray discs have a capacity of 25GB, capable of recording more than 2 hours of high definition programming.
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