Bluray Disc Ppt 97

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

Bluray Disc Ppt 97

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