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8/6/2019 Bluray Disc Ppt 97
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BLU-RAY
DISC
By :
Jimi ShahRutul Vaghela
Amit Antala
Rajesh Metcal
Pooja
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HISTORY
1st GENERATION:
Compact disc (CD): --- 650/700 MB
It is with us for over 20 years.
Wavelength of laser which reads data: 780 nm
Color 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 nm
Color of laser: Red
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3rd GENERATION:
Blu-ray disc (BD): --- 25/50 GB
-Next generation optical disc format.
-Developedby blu-ray disc association (which includes Apple,
Hitachi, HP, LG, Panasonic, Pioneer, Philips, Samsung, Sharp,
Sony)
-Wavelength of laserwhich reads data: 405 nm
-Colorof laser:Blue-violet which was developedby
SHUJI NAKAMURA
at NICHIA CORPORATION
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THE NAME
The blu-ray name is a combination of blue, for the color of the
laser that is used and ray for optical ray.
The e in blue was purposefully left off, according to the
manufacturers, because an everyday word cannot be a
trademark.
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TYPES OF BD: SINGLE LAYER :
- Can hold data up to 25/27 GB that means 2 hrs of HD video
or about 13hrs 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.
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COMPARISON IN BUILDING BD AND DVDCOMPARISON IN BUILDING BD AND DVDBD
Data is placed on top of a 1.1mm thick polycarbonate layer
Doesnt suffer fromBIREFRINGENCE
Doesnt suffer from DISC TILT
Hard coating is placed outsideto protect from scratches or
fingerprints
DVD
Data is sandwiched b/w twopolycarbonate layers, each
0.6 mm thick
Suffer from BIREFRINGENCE
Suffer from DISC TILT
No such hard coating isplaced
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BLU RAY S DURABILITY
ADVANTAG
E
Various hard coating technologies make Blu ray disc most
durable and family -friendly
Hard-coating technology provides resistance to:
- Finger prints
- Marks
- Scratches
- Dust
Much more ROBUST than todays polycarbonate-based
CD/DVDs (and HD DVDs)
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FEATURES OF BDFEATURES OF BDWith BD we can:
Record HDTV without any quality loss
Instantly skip to any spot on disc
Record one program while watching other on the disc Create playlists
Edit or reorder programs recorded on disc
Automatically search for an empty space on the disc to avoidrecording over a program
Access to web to download subtitles and other extra features
And many more
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On GA
URD
On GA
URD
Blu-ray discs are better armed than current DVDs. They come
equipped with a secure encryption system a unique ID thatprotects against video piracy and copyright infringement.
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DO MORE WITH BLU
More capacity, Density and Performance
More Industry Support/Consumer Reach (BDA has 140+
members) More Durable
More Interactive User Experience
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Thank You