Post on 30-May-2018
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TEEGALA KRISHNA REDDYTEEGALA KRISHNA REDDY
ENGG. COLLEGEENGG. COLLEGE
BY
N.PRATHAP 06R91A0224
INTERNAL GUIDE
Ms . SWAPNA
BLUE RAY DISC
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IntroductionIntroduction A current, single-sided, standard DVD can hold 4.7 GB(gigabytes) of Information. That's about the size of an average
two-hour, standard-definition movie with a few extra features
Blu-ray is the next-generation digital video disc. It can record,
store and play back high definition video and digital audio, as
well as computer data.
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Working ofWorking of BluBlu--RayRay 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 BDS
ingle 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 BDDouble 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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BluBlu--Ray Vs DVD CapacityRay Vs DVD Capacity
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CD vs DVD vs BluCD vs DVD vs Blu--Ray writingRay writing
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BLUBLU--RAY VS OTHER NEW DISCRAY VS OTHER NEW DISC
FORMATS
FORMATS
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 laser technology. Sony has developed XDCAM and ProData(Professional Disc for Data).
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ADVANTAGES
OF BDADVANTAGES
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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APPLICATIONSAPPLICATIONS
S
tand Alone Recorders and Game Controller
PC Data Storage
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CONCLUSIONCONCLUSION
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 of high -definition video or more than 20 hours of
standard 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.