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| Blu-ray DVD's   
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| 1. Blu-ray disc versus DVD disc ? Blu-ray uses a 405 nanometer wavelength blue-violet laser technology, in contrast to the 650nm wavelength red laser technology used in traditional DVD formats. When you choose a Blu-ray disc, make sure your equipment is compatible with Blu-ray technology. | 2. Dual layer versus Single layer? Means higher storage capacity. A Blu-ray disc, with a data transfer rate of 36Mps for example, can hold up to 25 GB of data on a single layer, up to 50GB on a dual-layer disc. On a 50GB disc, this translates into 9 hours of High Definition (HD) video, or approximately 23 hours of standard-definition (SD) video. | 3. Blu-ray DVD Player and HD TV Opting for Blu-ray versus Standard DVD equals will allow you to match the pixel count of the output of the DVD signal to the physical pixel count on your HD TV, which is typically 1280x720 (720p), 1920x1080 (1080i), or 1920x1080p (1080p); thus delivering an oustanding imaging performance on your HD TV. |
Blu-Ray BRD (rewritable) jewel case. Burn high definition videos thanks to a high capacity (5 x higher than DVD) re-writeable disc.
High definition media disc.
High definition media in order to get a 5 times higher quality.
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Key-points to know
