DEPARTMENT OF INFORMATION TECHNOLOGYRAJKIYA ENGINEERING COLLEGE, AMBEDKAR NAGAR (UP)-224122
Submitted By:VINAY KUMAR
Under the supervision ofMR. SOHIT SHUKLA (Asst. Professor)
Submitted to: MISS.ANAMIKA SRIVASTAVA
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
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.
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
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
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
Working of Blu-ray disc
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
DVD Vs Blu ray disc
1. High definition television recording
2. High definition
3. High definition camcorder archiving
4. Mass data storage
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
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
• 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-