blu-ray disc
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Computer Science Clay
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#1
07-06-2009, 01:13 AM


The name Blu-ray is derived from the blue-violet laser it uses to read and write to the chalcogenide disc. A Blu-ray Disc can store substantially more data than a DVD, because of the shorter wavelength (405 nm) of the blue-violet laser (DVDs use a 650-nm-wavelength red laser and CDs use an infrared 780 nm laser), which allows more information to be stored digitally in the same amount of space. In comparison to HD DVD, which also uses a blue laser, Blu-ray has more information capacity per layer (currently 25GB, but test media is up to 100 gigabytes). Sony has released 50 gigabyte recordable BDs and will soon be releasing 50 gigabyte BD media discs. In August 2006, TDK developed a Blu-ray disk with a 200 gigabytes capacity
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
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seminar class
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#2
23-02-2011, 10:27 AM

presented by:
G. SHIVA PRASAD


.ppt   BLUE RAY DISK PPT.ppt (Size: 757.5 KB / Downloads: 318)
Blu-ray Disc
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 name Blu-ray was derived from technology which utilizes a blue –violet laser to read and write data on Blu-ray disc.
 Character ‘e’ was intentionally left out so that term Blu-ray could be used as trademark.
The companies that have jointly established the BD specifications are:
 Hitachi, Ltd
 LG Electronics
 Matsushitha Electrical Industrial Co. Ltd
 Mitsubishi Electric Corporarion
 Pioneer Corporation
 Samsung Electronics Co. Ltd
 Sony
 Thomson
 Royal Phillips Electronics
 Sharp Corporation
DATA STORAGE TECHNIQUE:
 A blue-violet laser of wavelength (450 nm) is employed on Blu-ray disc.
 By employing such short wavelength Blu-ray disc successfully minimizes beam spot size INCREASING lens’s NA 0.85 .
 As a consequence of NA and wavelength tracking pitch of Blu-ray reduce to 0.32um which is less than half of DVD. This helps data to pack more tightly on Blu-ray disc than DVD.
 A single-layer disc can hold 25GB, which can be used to record over 2 hours of HDTV .
 There are also dual-layer versions of the discs that can hold 50GB.
Comparision of storage technologies
CHARACTERISTICS OF BLU-RAY

 Life Span
 Content Protection
 Cost
 Capacity
 Robustness of disc
 Compatible
Life Span
 Blu-ray disc have larger life span than any ordinary disc any where between 10 to (unlikely) 250 year.
 It is because of recordable material used in Blu-ray disc i.e combination of Si and Cu.
 Blu ray recordable media is a combination of a layer of silicon and copper which is bonded together during the burning process, this alloy is much more resilient to the hazardous conditions .
Content Protection
 Strongest content and copy protection schemes ever developed
 Incorporation of Robust copy mechanism
 DRM (Digital Right Management)is the copyright protection scheme the media industry uses to prevent piracy.
Cost
 Long term Profitability model for content Providers
 Cheapest Production cost
Capacity
 A single-layer disc can hold up to 25 gigabytes of information, while a dual-layer disc can hold up to 50 gigabytes of information.
 Future versions of Blu-ray discs may hold up to 200 gigabytes of Information.
 It is enough to put 2.5 hours of HDTV recording on it. It also can record over 13 hours of standard TV broadcasting.
Robustness of Disc
 Hard coating on Blu ray offer Stronger resistance to scratches and fingerprints .The protective layer is hard enough to prevent accidental 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. CDs and DVDs work equally well with the BD drives
Blu-ray Disc Applications
 High definition television recording
 High definition video distribution
 Mass data storage
High definition television recording
 The Blu-ray disc format offers consumers the ability to record their High Definition television broadcasts in their original quality for the first time, preserving the pure picture and audio level as offered by the broadcaster.
 Next level in home entertainment, offering an unsurpassed user experience Since Blu-ray Disc format incorporates the strongest copy protection algorithms of any format or proposal to date, the format allows for recording of digital broadcasts while meeting the content protection demands of the broadcast industry.




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satan194p
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#3
28-02-2011, 09:35 PM

^^ Can you please post its report?
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seminar class
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#4
03-03-2011, 11:01 AM


.ppt   MY PPT OF BLU RAY.ppt (Size: 1.39 MB / Downloads: 137)
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 companies that have jointly established the BD specifications are
 Hitachi, Ltd
 LG Electronics
 Matsushitha Electrical Industrial Co. Ltd
 Mitsubishi Electric Corporarion
 Pioneer Corporation
 Samsung Electronics Co. Ltd
 Sony
 Thomson
 Royal Phillips Electronics
 Sharp Corporation
 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
Discs store digitally encoded video and audio information in pits.
A laser reads the other side of these pits -- the bumps -- to play the movie or program that is stored on the DVD.
The more data that is contained on a disc, the smaller and more closely packed the pits must be.
The smaller the pits (and therefore the bumps), the more precise the reading laser must be.
Blu-ray also has a higher data transfer rate -- 36 M
HOW IT WORKS?????
CHARACTERISTICS OF BLU-RAY

 Life Span
 Content Protection
 Cost
 Capacity
 Robustness of disc
 Compatible
Life Span
 In the case of ordinary discs, the disc life is less .
 In the rewritable versions, as re-writing is done repeatedly to one area of the disc most probably, the inner perimeter limiting the disc life.
 BDFS (Blu-ray Disc File Structure is designed so as to avoid this problem, by using a system that uses free disc spaces with equal frequency)
Capacity
 The Blu-ray disc enables the recording, rewriting and playback of HD video up to 27 GB of data on a single sided single 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
Security
– Blu-ray discs are better armed than current DVDs. They come equipped with a secure encryption system -- a unique ID that protects against video piracy and copyright infringement.
Robustness of Disc
 Stronger resistance to scratches and fingerprints. The protective layer is hard enough to prevent accidental abrasions and allows fingerprints to be removed by wiping the disc with a tissue.
Principal BD Specifications
• Comparison of CD,DVD and B D specification
Blu-ray disc and CD’s /DVD’s
 1 DVD = 5 to 10 CD’s
 1 Blu-ray = 5 to 10 DVD’s !!!!!!
 Usage of a blue instead of a red laser
 Improved lens specifications
 Backward compatibility
Blu-ray Disc Applications
 High definition television recording
 High definition video distribution
 High definition camcorder archiving
 Mass data storage
High Definition
• To better understand the need for media formats with greater storage lets briefly describe what High Definition is.
• Your regular TV signal has about 480 pixel lines, but HD has about 1280 pixel lines that go across your TV
• Because of this difference the bandwidth of HD is about 5 times greater than standard video.
• Currently a standard movie takes up almost an entire DVD so we need something that’s almost 5 times that.
PIXEL: The pixel is the smallest addressable screen element; it is the smallest unit of picture that can be controlled. Each pixel has its own address and are often represented using dots or square
High definition television recording
 The Blu-ray Disc format offers consumers the ability to record their High Definition television broadcasts in their original quality for the first time, preserving the pure picture and audio level as offered by the broadcaster.
 Next level in home entertainment, offering an unsurpassed user experience Since Blu-ray Disc format incorporates the strongest copy protection algorithms of any format or proposal to date, the format allows for recording of digital broadcasts while meeting the content protection demands of the broadcast industry.
High Definition Video Distribution
 Blu-ray Disc format can store High Definition video in the highest possible quality, without need to compromise on picture quality.
 Depending on the encoding method, there is room for more than seven hours of the highest HD quality video. There is even room for additional content such as special features and other bonus material to accompany the High Definition movie.
 The Blu-ray Disc movie format greatly expands on traditional DVD capabilities, by incorporating many new interactive features allowing content providers to offer an even more incredible experience to consumers.
High Definition Camcorder Archiving
 With its unprecedented storage capacity, allows for the HD video recorded with an HD camcorder to be converted and recorded
 Storage capabilities, without the risk of tape
Mass Data Storage
 The growing number of broadband connections allowing consumers to download vast amounts of data
• Criticisms of Blu-rays
Conclusion
Very soon BD’s will replace CDs and DVDs

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seminar class
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#5
22-03-2011, 12:22 PM

presented by:
Pradeep Kumar


.docx   blue ray disc.docx (Size: 14.74 KB / Downloads: 80)
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 companies that have jointly established the BD specifications are Hitachi, Ltd LG Electronics Matsushitha Electrical Industrial Co. Ltd Mitsubishi Electric Corporarion
Pioneer Corporation Samsung Electronics Co. Ltd Sony Thomson Royal Phillips Electronics Sharp Corporation 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
CHARACTERISTICS OF BLU-RAY :
CHARACTERISTICS OF BLU-RAY Life Span Content Protection Cost Capacity Robustness of disc Compatible
Life Span :
Life Span In the case of ordinary discs, the disc life is less . In the rewritable versions, as re-writing is done repeatedly to one area of the disc most probably, the inner perimeter limiting the disc life. BDFS (Blu-ray Disc File Structure is designed so as to avoid this problem, by using a system that uses free disc spaces with equal frequency
Content Protection :
Content Protection Strongest content and copy protection schemes ever developed Incorporation of Robust copy mechanism Cost Long term Profitability model for content Providers Cheapest Production cost
Capacity :
Capacity The Blu-ray disc enables the recording, rewriting and playback of HD video up to 27 GB of data on a single sided single 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
Robustness of Disc :
Robustness of Disc Stronger resistance to scratches and fingerprints The protective layer is hard enough to prevent accidental 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. CDs and DVDs work equally well with the BD drives.
Principal BD Specifications :
Comparison of CD,DVD and B D specification :

Comparison of CD,DVD and B D specification Parameter CD DVD BD . Disk diameter 120 mm 120 mm 120 mm Disk thickness 1.2 mm 1.2 mm 1.2 mm Laser wavelength 780 nm 650 nm 405 nm Numerical aperture 0.45 0.60 0.85 Minimum pit length 0.83 um 0.4 um 0.138 um Data rate 1.2 Mb/sec 11 Mb/sec 36 Mb/sec Number of sides one ----- one or two Number of data layers One ----- One or two Data capacity ~680 MB 4.7 GB (1L) 27 GB 8.5 GB (2L) 1 7 GB (2L/2S)
Blu-ray disc and CD’s /DVD’s :
Blu-ray disc and CD’s /DVD’s 1 DVD = 5 to 10 CD’s 1 Blu-ray = 5 to 10 DVD’s !!!!!! Usage of a blue instead of a red laser Improved lens specifications Backward compatibility (Comparison Between Blu-ray n others)
Blu-ray Disc Applications :
Blu-ray Disc Applications High definition television recording High definition video distribution High definition camcorder archiving Mass data storage
High definition television recording :
High definition television recording The Blu-ray Disc format offers consumers the ability to record their High Definition television broadcasts in their original quality for the first time, preserving the pure picture and audio level as offered by the broadcaster. Next level in home entertainment, offering an unsurpassed user experience Since Blu-ray Disc format incorporates the strongest copy protection algorithms of any format or proposal to date, the format allows for recording of digital broadcasts while meeting the content protection demands of the broadcast industry.
High Definition Video Distribution :
High Definition Video Distribution Blu-ray Disc format can store High Definition video in the highest possible quality, without need to compromise on picture quality. Depending on the encoding method, there is room for more than seven hours of the highest HD quality video. There is even room for additional content such as special features and other bonus material to accompany the High Definition movie. The Blu-ray Disc movie format greatly expands on traditional DVD capabilities, by incorporating many new interactive features allowing content providers to offer an even more incredible experience to consumers.
High Definition Camcorder Archiving :
High Definition Camcorder Archiving With its unprecedented storage capacity, allows for the HD video recorded with an HD camcorder to be converted and recorded Storage capabilities, without the risk of tape wear
Mass Data Storage :
Mass Data Storage The growing number of broadband connections allowing consumers to download vast amounts of data
Conclusion :
Conclusion Very soon BD’s will replace CDs and DVDs THANK YOU…
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seminar class
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#6
28-03-2011, 02:02 PM

Presented by
M.Vamshi krishna


.ppt   58512-19348-bd.ppt (Size: 630 KB / Downloads: 36)
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 companies that have jointly established the BD specifications are
 Hitachi, Ltd
 LG Electronics
 Matsushitha Electrical Industrial Co. Ltd
 Mitsubishi Electric Corporarion
 Pioneer Corporation
 Samsung Electronics Co. Ltd
 Sony
 Thomson
 Royal Phillips Electronics
 Sharp Corporation
 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
CHARACTERISTICS OF BLU-RAY
 Life Span
 Content Protection
 Cost
 Capacity
 Robustness of disc
 Compatible
Life Span
 In the case of ordinary discs, the disc life is less .
 In the rewritable versions, as re-writing is done repeatedly to one area of the disc most probably, the inner perimeter limiting the disc life.
 BDFS (Blu-ray Disc File Structure is designed so as to avoid this problem, by using a system that uses free disc spaces with equal frequency
Content Protection
 Strongest content and copy protection schemes ever developed
 Incorporation of Robust copy mechanism
Capacity
 The Blu-ray disc enables the recording, rewriting and playback of HD video up to 27 GB of data on a single sided single 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
Robustness of Disc
 Stronger resistance to scratches and fingerprints The protective layer is hard enough to prevent accidental abrasions and allows fingerprints to be removed by wiping the disc with a tissue.
Principal BD Specifications
Comparison of CD,DVD and B D specification
Blu-ray disc and CD’s /DVD’s
 1 DVD = 5 to 10 CD’s
 1 Blu-ray = 5 to 10 DVD’s !!!!!!
 Usage of a blue instead of a red laser
 Improved lens specifications
 Backward compatibility
Blu-ray Disc Applications
 High definition television recording
 High definition video distribution
 High definition camcorder archiving
 Mass data storage
High definition television recording
 The Blu-ray Disc format offers consumers the ability to record their High Definition television broadcasts in their original quality for the first time, preserving the pure picture and audio level as offered by the broadcaster.
 Next level in home entertainment, offering an unsurpassed user experience Since Blu-ray Disc format incorporates the strongest copy protection algorithms of any format or proposal to date, the format allows for recording of digital broadcasts while meeting the content protection demands of the broadcast industry.
High Definition Video Distribution
 Blu-ray Disc format can store High Definition video in the highest possible quality, without need to compromise on picture quality.
 Depending on the encoding method, there is room for more than seven hours of the highest HD quality video. There is even room for additional content such as special features and other bonus material to accompany the High Definition movie.
 The Blu-ray Disc movie format greatly expands on traditional DVD capabilities, by incorporating many new interactive features allowing content providers to offer an even more incredible experience to consumers.
High Definition Camcorder Archiving
 With its unprecedented storage capacity, allows for the HD video recorded with an HD camcorder to be converted and recorded
 Storage capabilities, without the risk of tape wear
Mass Data Storage
 The growing number of broadband connections allowing consumers to download vast amounts of data
Conclusion
Very soon BD’s will replace CDs and DVDs

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Anupam025
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#7
06-04-2011, 12:30 AM

thanks so much for this report
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anupam:P
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18-01-2012, 09:44 AM


to get information blue ray disk full report ,ppt and related topic refer the link bellow

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topicideashow-to-blue-ray-disk--13068

topicideashow-to-blu-ray-disc%09seminar and presentation-%09

topicideashow-to-blu-ray-disc--2512

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