blu ray disc

A presentation on blue-ray disc , complete description of blueray disc and its working too

1. DEPARTMENT OF INFORMATION TECHNOLOGY RAJKIYA ENGINEERING COLLEGE, AMBEDKAR NAGAR (UP)-224122 A Colloquium On Submitted By: VINAY KUMAR ROLL NO:1573713037 Under the supervision of MR. SOHIT SHUKLA (Asst. Professor) Submitted to: MISS.ANAMIKA SRIVASTAVA (Asst. Professor) 20-Feb-17 1

2. 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 20-Feb-17 2

3. INTRODUCTION What is BRD? A blu -ray disc is a optical storable device that stores high-definition video Blu -ray, also known as Blu -ray Disc (BD) is the name of a next-generation optical disc format. A blu -ray disc can store up to 50GB of data. 20-Feb-17 3

4. 1st Generation : Compact Disc (CD):-- 650/700MB It is with us for over 20 yrs. Wavelength of laser which reads data: 780nm Color of laser: Red 2nd Generation : Digital versatile disc (DVD):-- 4.7GB It offers high quality sound and video than CD. Wavelength of laser which reads data: 650nm Color of laser: Red HISTORY 20-Feb-17 4

5. 3rd Generation: Blu -ray disc (BD):-- 25/50 GB Next generation optional disc format. Developed by blu -ray association (which includes Apple,Hitachi , HP, LG, Panasonic, Pioneer) Wavelength of laser that reads data: 405 HISTORY(CONT.) 20-Feb-17 5

6. The Technology of Blu -ray disc So, in blu -ray disc: Pit size-- 0.15 microns (more than twice a small as the pits on DVD). Track pitch– 0.32 microns laser needed:-- blue-violet laser (450nm) Data transfer rate: 36Mbps 20-Feb-17 6

7. Working of Blu -ray disc 20-Feb-17 7

8. Characteristics of Blu -ray disc Single layer: 25 GB Dual layer: 50 GB Diameter: 120 mm Thickness: 1.2 mm Center hole diameter: 15 mm Uses blue laser of wavelength 400 nm 20-Feb-17 8

9. DVD Vs Blu ray disc 20-Feb-17 9

10. Application High definition television recording High definition High definition camcorder archiving Mass data storage 20-Feb-17 10

11. Advantage & disadvantage Large storage capacity. Inclusion in gaming consoles. Backward compatibility. Edit or reorder programs recorded on the disc . Instantly skip to any spot on the disc . Very expansive technology. High definition capacity is not substantial amount. Higher price for purchase 20-Feb-17 11

12. 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 20-Feb-17 12

13. 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. 20-Feb-17 13

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