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7/27/2019 BLU-RAY DISC.ppt
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BLU-RAY DISC
PAPER PRESENTATIONON
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Working of Blu-Ray
Blu-ray has reduced the track pitch from
0.74 microns to 0.32 microns. The
smaller pits, smaller beam and shortertrack pitch together enable a single-layer
Blu-ray disc to hold more than 25GB of
information about five times the amountof information that can be stores on a
DVD.
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Single Layer BD
A single-layer BIu-ray disc, which is
roughly the same size as a DVD, can
hold up to 27 GB of data that's morethan two hours of high-definition
video or about 13 hours of standard
video.
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Double Layer BD
A double-layer Blu-ray disc can store
up to 54 GB, enough to hold about
4.5 hours of high-definition video ormore than 20 hours of standard
video.
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Blu-Ray Vs DVD Capacity
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CD vs DVD vs Blu-Ray writing
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BLU-RAY VS OTHER NEW DISCFORMATS
The other big player is HD_DVD, also called AOD(Advanced Optical Disc).
HD-DVD BLU-RAY
Single Layer 20GB 27GB
Double Layer 30GB 54GB
Other Discs like China has introduced the Enhanced Video
Disc (EVD), Taiwan has created the ForwardedVersatile Disc(FVD).
There are also professional versions of the Blu lasertechnology. Sony has developed XDCAM and ProData(Professional Disc for Data).
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ADVANTAGES OF BD Record High-Definition Television (HDTV) without
any quality loss
Record one program while watching another on
the disc Edit programs recorded on the disc
Automatically search for an empty space on the
disc to avoid recording over a program
Access the web to down load subtitles and other
extra features
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APPLICA TIONS
Stand Alone Recorders and Game Controller
PC Data Storage
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CONCLUSION
Blu-ray disc has been a consistent road map toemerging disc technologies. Blue-ray can store upto 54 GB, enough to hold about 4.5 hours ofhigh -definition video or more than 20 hours ofstandard video. And there are even plans in theworks to develop a disc with twice that amountof storage.
Its very likely that the technology will beadopted as the next generation optical disc formatfor PC data storage and replace technologies suchas DVD+-R, DVD+-RW, and DVD-RAM.
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Blu-ray Disc RAMSWAROOP SINGH T K ASHWANTH KUMAR
BRANCH: CSE BRANCH: CSE
05C71A0547 05C71A0546