Report on Blue Ray Disc
Blu-ray, also known as Blu-ray Disc (BD) is the name of a next-generation optical disc format jointly developed by thirteen leading consumer electronics and pc companies (Dell, Hitachi, HP, Mitsubishi, Panasonic, Pioneer, Philips, Sharp, TDK and Thomson).
CD and DVD format was developed to enable recording, rewriting and playback of high-definition television (HDTV). Blu-ray makes it possible to record over 2 hours of HDTV, or more than 13 hours of SDTV on a 27GB disc. There are also plans for higher capacity discs that are expected to hold up to 54GB. A single-layer disc can fit 23.3GB, 25GB or 27GB.A dual-layer disc can fit 46.6GB, 50GB or 54GB.
As consumer demands for recording HDTV programming will rise, Blu-ray was designed with this application in mind and enables direct recording of the MPEG-2 TS (Transport Stream) used by digital broadcasts. It is highly compatible with global standards for digital television. This means that HDTV broadcasts can be recorded directly to the disc without any extra processing or quality loss. To handle the increased amount of data required for HDTV, Blu-ray employs a 36Mbps data transfer rate, which is more than enough to record and playback HDTV while maintaining the original picture quality. In addition, by fully utilizing an optical disc’s random accessing features, it’s possible to playback video on a disc while simultaneously recording high-definition video. Blu-ray is expected to replace VCRs and current DVD technology within a few years. With the support of the world’s two largest PC manufacturers, HP and Dell, it’s very likely that the technology will be adopted as the next-generation optical disc format for PC data storage.