1. Blu-ray Disc
It’s a new generation disc
Presented by
Vimesh Shah

2. Content
1. Introduction
2. Characteristics of Blu-ray Disc
3. Specifications of Blu-ray Disc
4. Comparison of Storage Technologies
5. Application

3. 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 format was developed by the Blu-ray Disc Association, a
group representing makers of consumer electronics, computer
hardware, and motion pictures.

4.  The companies that have jointly established the BD
specifications are
Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi, Panasonic, Pionee
r, Philips, Samsung, Sharp, Sony, TDK and Thomson.
 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.

5.  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 GB
It offers high quality sound and video than CD.
Wavelength of laser which reads data: 650 nm
Color of laser: Red

6.  3rd GENERATION:
Blu-ray disc (BD): --- 25/50 GB
-Next generation optical disc format.
-Developed by blu-ray disc association (which includes
Apple, Hitachi, HP, LG, Panasonic, Pioneer, Philips, Samsung, S
harp, Sony)
-Wavelength of laser which reads data: 405 nm
-Color of laser: Blue-violet which was developed by
SHUJI NAKAMURA
at NICHIA CORPORATION

7. Characteristics
 Life Span
 Cost
 Capacity
 Robustness of disc
 Compatible
 Hard-coating technology

8. Life Span:
 In the case of ordinary discs , the discs life is less.
 In the rewritable version , as re-writing is done
repeatedly to one area of the disc most probably , the
inner perimeter limiting the disc life.
 BDFS is designed so as to avoid this problem , by
using a system that uses free disc spaces with equal
frequency

9. Cost:
 Cheapest production cost.
Capacity:
 The Blu-ray disc enables the recording, rewriting and
playback of HD video up to 27GB of data on a single
sided 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

10. Robustness:
 Stronger resistance to scratches and fingerprints the
protective layer is hard enough to prevent accidental
and 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. CD and DVD’s work equally well with
the BD drives.

11. Hard-coating technology
 Hard-coating technology provides resistance to:
- Finger prints
- Marks
- Scratches
- Dust
 Various hard coating technologies make Bly ray disc most
durable and family -friendly”
 Much more ROBUST than today’s polycarbonate-based
CD/DVD’s (and HD DVD’s)

12. Types Of Blu-ray Discs
 SINGLE LAYER :
- Can hold data up to 25/27 GB that means 2 hrs of HD video or
about 13 hrs 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.

15. Size of Blu-ray Disc

16. Comparison B/w CD,DVD & Blu-ray Disc

18. Advantages
 record one program while watching another on the disc .
 automatically search for an empty space on the disc to avoid
recording over a program.
 access the Web to download subtitles and other extra features.
 Has the potential of up to 54MB/s read and write speeds.
 Allows for high definition 1080p movies to be marketed.

19. Applications

20. Recent Development
Blu-ray 3D
 The Blu-ray Disc Association (BDA) created a task force made up
of executives from the film industry and the consumer
electronics and IT sectors to help define standards for putting
3D film and 3D television content on a Blu-ray Disc.
 Sony has released a firmware upgrade for PlayStation 3 consoles
that enables 3D Blu-ray Disc playback.