blu-ray.ppt
- 1. Presented by Deepak Kumar Singh Regd.No: 0801205048 Information Technology
- 2. Media type:High-density optical disc Encoding:MPEG-2, MPEG-4 AVC (H.264), and VC- 1 Capacity:25 GB (single layer), 50 GB (dual layer) Read mechanism:1x@36 Mbit/s & 2x@72 Mbit/s Developed by:Blu-ray Disc Association Usage:Data storage, High-definition video, and PlayStation 3 games BLU-RAY DISC
- 3. The name is a combination of "Blue" (blue-violet laser) and "Ray" (optical ray). According to the Blu-ray Disc Association the spelling of "Blu- ray" is not a mistake, the character "e" was intentionally left out so the term could be registered as a trademark The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data Why go for blu-ray? 1. The benefit of using a blue-violet laser (405nm) is that it has a shorter wavelength than a red laser (650nm), which makes it possible to focus the laser spot with even greater precision. 2. By decreasing the wavelength, increasing the numerical aperture from 0.60 to 0.85 and making the cover layer thinner to avoid unwanted optical effects, the laser beam can be focused to a smaller spot. This allows data to be packed more tightly and stored in less space
- 4. Blu-ray Disc Association (BDA), a group of leading consumer electronics, personal computer and media manufacturers, with more than 180 member companies from all over the world Apple Computer, Inc. Dell Inc. Hewlett Packard Company Hitachi, Ltd. LG Electronics Inc. Matsushita Electric Industrial Co., Ltd. Mitsubishi Electric Corporation Pioneer Corporation Royal Philips Electronics Samsung Electronics Co., Ltd. Sharp Corporation Sony Corporation Sun Microsystems, Inc. TDK Corporation Thomson Multimedia Twentieth Century FoX Walt Disney Pictures Warner Bros. Entertainment
- 5. Data readwrite capacity 1x speed is defined as 36Mbps and 2x -72mbps Blu-ray also has the potential for much higher speeds, as a result of the larger numerical aperture (NA) adopted by Blu-ray Disc The large NA value effectively means that Blu-ray will require less recording power and lower disc rotation speed than DVD and HD-DVD to achieve the same data transfer rate. Data and video stoage capacity Single layer-25gb and double layer-50gb Over 9 hours of high-definition (HD) video on a 50GB disc. About 23 hours of standard-definition (SD) video on a 50GB disc. Audio and video codec compatibility Linear PCM (LPCM) - up to 8 channels of uncompressed audio. (mandatory) Dolby Digital (DD) - format used for DVDs, 5.1-channel surround sound. (mandatory) Dolby Digital Plus (DD+) - extension of Dolby Digital, 7.1-channel surround sound. (optional) Dolby TrueHD - lossless encoding of up to 8 channels of audio. (optional) DTS Digital Surround - format used for DVDs, 5.1-channel surround sound. (mandatory) DTS-HD High Resolution Audio - extension of DTS, 7.1-channel surround sound. (optional) DTS-HD Master Audio - lossless encoding of up to 8 channels of audio. (optional)
- 7. optical media formats Laserdisc Compact disc (CD): Red Book, 5.1 Music Disc, SACD, PhotoCD, CD-R, CD-ROM, CD-RW, Video CD, SVCD, CD+G, CD- Text, CD-ROM XA, CD- Extra, CD-i Bridge, CD-i MiniDisc DVD: DVD-R, DVD+R, DVD-R DL, DVD+R DL, DVD-RW, DVD+RW, DVD-RW DL, DVD+RW DL, DVD-RAM, DVD-D HD DVD: HD DVD-R, HD DVD-RW, HD DVD-RAM BD-ROM - read-only format for distribution of HD movies, games, software, etc BD-R - recordable format for HD video recording and PC data storage. BD-RE - rewritable format for HD video recording and PC data storage BD-J-sun java software support Blu-ray formats
- 8. Video codec compatibility MPEG-2 - enhanced for HD, also used for playback of DVDs and HDTV recordings. MPEG-4 AVC - part of the MPEG-4 standard also known as H.264 (High Profile and Main Profile). SMPTE VC-1 - standard based on Microsoft's Windows Media Video (WMV)technology. Hard-coating technology Since the Blu-ray data layer is closer to the surface of the disk, compared to the DVD standard, it was at first more vulnerable to scratches Blu-ray discs use their own proprietary hard-coat technology called ScratchGuard
- 9. Software support( Bd-j ,BD+) This Java Version is called BD-J and is a subset of the Globally Executable MHP (GEM) standard. GEM is the world-wide version of the Multimedia Home Platform standard Sun Microsystems' Java cross-platform software environment included in all Blu-ray Disc players as a mandatory part of the standard. Java is used to implement interactive menus on Blu-ray Discs. Inclusion of a Java Virtual Machine as well as network connectivity in BD devices will allow updates to Blu-ray Discs via the Internet, adding content such as additional subtitle languages and promotional features that are not included on the disc at pressing time BD+ was developed by Cryptography Research Inc. and is based on their concept of Self-Protecting Digital Content They come equipped with a secure encryption system -- a unique ID that protects against video piracy and copyright infringement.
- 10. BD vs HD-DVD The capacity The hardware support(Toshiba is the only company offering a stand-alone HD-DVD player ) Blu-ray has also adopted a higher data transfer rate for video and audio (54Mbps vs 36.55Mbps) over HD- DVD CORPORATE SUPPORTS
- 11. 11/23/2022 Blu-ray vs HD-DVD and DVD
- 12. Ongoing development JVC has developed a three layer technology that allows putting both standard-definition DVD data and HD data on a BD/DVD combo Quad-layer (100 GB) discs have been demonstrated on a drive with modified optics (TDK version) Regions for Blu-ray standard Region code Area A- North America, Central America, South America, Japan, Taiwan North Korea, South Korea, Hong Kong, and Southeast Asia B- Europe, Greenland, French territories, Middle East, Africa, Australia, and New Zealand C- India, Bangladesh, Nepal, Mainland China, Pakistan, Russia, Central, and South Asia. Cost 2x single-layer BD-R discs, with a capacity of 25 GB –us$12 4x double-layer –us$60
- 13. For more information log on to----: http:www.bluray.com http:www.wikipedia.org http:www.sonypictures.com http:www.blurayassociation.com http:www.google.com
- 15. Thank u!!