blu ray disc

DEPARTMENT OF INFORMATION TECHNOLOGYRAJKIYA ENGINEERING COLLEGE, AMBEDKAR NAGAR (UP)-224122

A Colloquium

On

Submitted By:VINAY KUMAR

ROLL NO:1573713037

Under the supervision ofMR. SOHIT SHUKLA (Asst. Professor)

Submitted to: MISS.ANAMIKA SRIVASTAVA

(Asst. Professor)05/02/20231

CONTENTS

Introduction History The technology of blu ray disc Working of blu ray disc Characteristics of blu ray disc CD Vs DVD Vs Blu ray disc Application Advantage & disadvantage Conclusion Reference

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INTRODUCTION

What is BRD?

1. A blu-ray disc is a optical storable device that stores high-definition video

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

3. A blu-ray disc can store up to 50GB of data.

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1st Generation :1. Compact Disc (CD):-- 650/700MB2. It is with us for over 20 yrs.3. Wavelength of laser which reads data: 780nm4. Color of laser: Red

2nd Generation :5. Digital versatile disc (DVD):-- 4.7GB6. It offers high quality sound and video than CD.7. Wavelength of laser which reads data: 650nm8. Color of laser: Red

HISTORY

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3rd Generation:1. Blu-ray disc (BD):-- 25/50 GB

2. Next generation optional disc format.

3. Developed by blu-ray association (which includes Apple,Hitachi, HP, LG, Panasonic, Pioneer)

4. Wavelength of laser that reads data: 405

HISTORY(CONT.)

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The Technology of Blu-ray disc

So, in blu-ray disc:1. Pit size-- 0.15 microns (more than twice a small as the pits on

DVD).2. Track pitch– 0.32 microns3. laser needed:-- blue-violet laser (450nm)4. Data transfer rate: 36Mbps

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Working of Blu-ray disc

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Characteristics of Blu-ray disc

1. Single layer: 25 GBDual layer: 50 GB

2. Diameter: 120 mm

3. Thickness: 1.2 mm

4. Center hole diameter: 15 mm

5. Uses blue laser of wavelength 400 nm

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DVD Vs Blu ray disc

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Application

1. High definition television recording

2. High definition

3. High definition camcorder archiving

4. Mass data storage

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Advantage & disadvantage

1. Large storage capacity.

2. Inclusion in gaming consoles.

3. Backward compatibility.

4. Edit or reorder programs recorded on the disc .

5. Instantly skip to any spot on the disc .

1. Very expansive technology.

2. High definition capacity is not substantial amount.

3. Higher price for purchase

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Both DVD and BD would most likely co-exist for quiet some time until HDTVs become more widespread.

Audio and video will reach higher qualities with larger storage space

Conclusion

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Reference

• www.wikipedia.org/wiki/Wikipedia:WikiProject• www.appgeeker.com/blu-ray-ripper.• www.sony.co.in/electronics/blu-ray-dvd-players/t/blu-ray-disc-

players.

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