SEMINAR

ON BLU-RAY DISCBLU-RAY DISC

…..the storage wonder

T h e B l u – r a y D i s c

CONTENTS

WHAT IS BLU-RAY DISC ?

DEVELOPMENT

CURRENT TECHNOLOGY

NEXT-GENERATION TECHNOLOGY

EVOLUTION OF STORAGE MEDIA

DIFFERENCES BETWEEN DVD & BD AND HD-DVD & BD

BLU-RAY DISC TECHNOLOGY

ADVANTAGES AND DISADVANTAGES OF BLU-RAY DISC

AIM OF BLU-RAY DISC

APPLICATIONS

EXAMPLES OF SOME BLU-RAY RECORDERS

FUTURE OF BLU-RAY DISC

WEB REFERENCES

CONCLUSION

EVOLUTIONVHS: analogDVD: digitalBD: high-definition

Enables recording, rewriting, and playback of high-definition video.

Capable of storing information that the DVD and CD are not capable of holding.

It is more secured than others.

Courtesy Blu-ray Disc Founders “Blu-ray Disc Format White Paper”

WHAT IS BLU-RAY DISC?

Blu-ray, also known as Blu-ray Disc (BD) is the name of a next-generation optical disc format .

The Blu-ray disc uses blue violet laser with wave length of 405nm, hence it is named as “Blu-ray”.

The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data.

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The blu-ray disc uses blue violet laser with wave length of 405nm. So it is named as blu-ray. Benefits of using blue violet laser(405nm)are :-

1- shorter wavelength than red laser (650nm), which makes it possible to focus the laser spot with even greater precision.

2-allows data to be packed more tightly and stored in less space

3-possible to fit more data on the disc even though it's the same size as CD/DVD.

4-with the change of numerical aperture to 0.85 is what enables Blu-ray Disc to hold 25GB/50GB.

NAMING:

BLU-RAY FEATURES

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Media type : High –density Optical disc

Encoding : MPEG-2, MPEG-4 AVC (H.264), and VC-1

Capacity: 25 GB (single layer), 50 GB (dual layer)

Read mechanism: 1x@36 Mbit/s & 2x@72 Mbit/s

Developed by: Blu-ray Disc Association

Usage: Data storage, High-definition video and Play Station 3D Games

DEVELOPMENT

Developed by Blu-ray Association (BDA), a group of leading consumer electronics, personal computer and media manufacturers, with more than 180 member companies from all over the world. The Board of Directors currently consist of :- - Apple Company, Inc. - Dell Inc. - Hewlett Packard Company - Hitachi Ltd. - Matsushita Electric Corporation -LG Electronics Inc. - Samsung Electronics Co., Ltd. -Pioneer Corporation - Electronics Sharp Corporation -TDK Corporation - Royal Philips Sony Corporation -Sun Microsystems, Inc.- 20th Century Fox -Thomson Corporation - Warner Bros. Entertainment -Walt Disney Pictures

NEXT-GENERATION TECHNOLOGY

IS BLU-RAY THE SAME THING AS HD-DVD?

No, HD-DVD (previously known as AOD) is the name of a

competing next-generation optical disc format developed by

Toshiba and NEC. The format is quite different from Blu-ray,

but also relies heavily on blue-laser technology to achieve a

higher storage capacity. The read-only discs (HD DVD-ROM)

will hold 15GB and 30GB, the rewritable discs (HD DVD-RW)

will hold 20GB and 32GB, while the recordable discs (HD DVD-

R) won't support dual-layer discs, so they will be limited to

15GB. The format is being developed within the DVD Forum

as a possible successor to the current DVD technology.

DIFFERENCE BETWEEN BD AND HD-DVD?

Parameters BD BD HD-DVD

HD-DVD

Number of layers single dual single dual

Storage capacity 25 GB 50 GB 15 GB

30 GB

Laser Wavelength 405nm 405nm 405nm 405nm

Numerical Aperture 0.85 0.85 0.65 0.65

Protection Layer 0.1mm 0.1mm 0.6mm 0.6mm

Data transfer rate 36.5Mbps 36.5Mbps 36.5Mbps

36.5Mbps

Video compression MPEG-2 MPEG-2 MPEG-2

MPEG-2

MPEG-4 MPEG-4 MPEG-4

MPEG-4 AVC AVC AVC

AVC VC-1 VC-1 VC-1

VC-1

BLU-RAY DISC Technology

BLU-RAY ADVANTAGES

record high-definition television (HDTV) without any quality

loss

instantly skip to any spot on the disc

record one program while watching another on the disc

create playlists

edit or reorder programs recorded 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

DISADVANTAGES OF BLU-RAY DISC

There are no apparent disadvantages of the Blu-ray Disc (BD).

AIM OF BLU-RAY DISC

The main objective of Blu-ray Disc is to enter the HDTV market which is now very popular in Japan and America.

APPLICATIONS OF BLU-RAY DISC

The target application of Blu-ray Disc is in the field of HDTV (High Definition Television).

The Blu-ray Disc (BD) is also to be used for PC data

storage.

EXAMPLES OF SOME BLU-RAY RECORDERS

PIONEER

SONY

1-Stand alone players

2-Recordable stand alone players

6-Recordable PC drives

3 -Portable stand alone players

4-Universal player (Blu-ray and HD-DVD)

5-PC drives

APPLICATIONS OF BLU-RAY DISC

New Releases

FUTURE OF BLU-RAY DISC

The future plan of the BDA (Blu-ray Disc Association) is to replace VCRs and DVD recorders over the coming years, with the transition to HDTV.

The format is also likely to become a standard for PC data storage and HD movies in the future.

Expect the BD to become more prevalent once the HDTV market establishes its presence.Audio and video will reach higher qualities with larger storage space.

Look for BD with more than two layers as the technology is further refined

CONCLUSION

As in respect to the huge storage capacity, high

resolution giving rise to the recording of true quality high

definition video (HDTV) and more importantly it is

backwardly compatible with current CD and DVD it seems

to be a dream come true technology in storage market both

for the high definition video (HDTV) and as well as for

PCs.

The Blue-ray Technology

….Is going to dominate the next decade