Blu ray disc


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Blu ray disc

  1. 1. Blu-ray DiscIt’s a new generation disc Presented by Vimesh Shah
  2. 2. Content1. Introduction2. Characteristics of Blu-ray Disc3. Specifications of Blu-ray Disc4. Comparison of Storage Technologies5. Application
  3. 3. Introduction Blu-ray (BD) is a next-generation optical disc format. The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data. The format was developed by the Blu-ray Disc Association, a group representing makers of consumer electronics, computer hardware, and motion pictures.
  4. 4.  The companies that have jointly established the BD specifications are Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi, Panasonic, Pionee r, Philips, Samsung, Sharp, Sony, TDK and Thomson. The name Blu-ray is derived from the blue-violet laser it uses to read and write to the disc. The “e” was intentionally left out of the name due to trademark restrictions.
  5. 5.  1st GENERATION:Compact disc (CD): --- 650/700 MBIt is with us for over 20 years.Wavelength of laser which reads data: 780 nmColor of laser: Red 2nd GENERATION:Digital versatile disc (DVD): --- 4.7 GBIt offers high quality sound and video than CD.Wavelength of laser which reads data: 650 nmColor of laser: Red
  6. 6.  3rd GENERATION:Blu-ray disc (BD): --- 25/50 GB-Next generation optical disc format.-Developed by blu-ray disc association (which includes Apple, Hitachi, HP, LG, Panasonic, Pioneer, Philips, Samsung, S harp, Sony)-Wavelength of laser which reads data: 405 nm-Color of laser: Blue-violet which was developed by SHUJI NAKAMURA at NICHIA CORPORATION
  7. 7. Characteristics Life Span Cost Capacity Robustness of disc Compatible Hard-coating technology
  8. 8. Life Span: In the case of ordinary discs , the discs life is less. In the rewritable version , as re-writing is done repeatedly to one area of the disc most probably , the inner perimeter limiting the disc life. BDFS is designed so as to avoid this problem , by using a system that uses free disc spaces with equal frequency
  9. 9. Cost: Cheapest production cost.Capacity: The Blu-ray disc enables the recording, rewriting and playback of HD video up to 27GB of data on a single sided layer. It is enough to put 2.5 hours of HDTV recording on it It also can record over 13 hours of standard TV broadcasting
  10. 10. Robustness: Stronger resistance to scratches and fingerprints the protective layer is hard enough to prevent accidental and abrasions and allows fingerprints to be removed by wiping the disc with a tissue.Compatible: The BD drives are designed to be backward compatible, i.e. CD and DVD’s work equally well with the BD drives.
  11. 11. Hard-coating technology Hard-coating technology provides resistance to: - Finger prints - Marks - Scratches - Dust Various hard coating technologies make Bly ray disc most durable and family -friendly” Much more ROBUST than today’s polycarbonate-based CD/DVD’s (and HD DVD’s)
  12. 12. Types Of Blu-ray Discs SINGLE LAYER :- Can hold data up to 25/27 GB that means 2 hrs of HD video or about 13 hrs of standard video. DOUBLE LAYER :- Can hold data up to 50 GB that means 4.5 hrs of HD video or more than 20 hrs of standard video.
  13. 13. Size of Blu-ray Disc
  14. 14. Comparison B/w CD,DVD & Blu-ray Disc
  15. 15. Advantages record one program while watching another on the disc . automatically search for an empty space on the disc to avoid recording over a program. access the Web to download subtitles and other extra features. Has the potential of up to 54MB/s read and write speeds. Allows for high definition 1080p movies to be marketed.
  16. 16. Applications
  17. 17. Recent DevelopmentBlu-ray 3D The Blu-ray Disc Association (BDA) created a task force made up of executives from the film industry and the consumer electronics and IT sectors to help define standards for putting 3D film and 3D television content on a Blu-ray Disc. Sony has released a firmware upgrade for PlayStation 3 consoles that enables 3D Blu-ray Disc playback.