Bluraydisc 100402003331 Phpapp01
Bluraydisc 100402003331 Phpapp01
Bluraydisc 100402003331 Phpapp01
HISTORY
1 GENERATION:
2 GENERATION:
3 GENERATION:
THE NAME
The Blu ray name is a combination of Blue for the colour of the laser is used and the ray for optical ray.
TYPES OF BD
SINGLE LAYER:
Can hold data upto 25/27 GB that means 2hrs of HD video or about 13hrs of standard video.
DOUBLE LAYER: Can hold data upto 50GB that means 4.5hrs of HD video or more than 20hrs of standard video.
FORMATS OF BD
It comes in 4 different formats: BD ROM (read only):- for reading recorded content.
ADVANTAGES:
Hard coating technologies make Blu ray Disc most durable and family- friendly.
Hard coating technology provides resistance to:Finger prints Marks Scratches Dust
Much more ROBUST than todays polycarbonate based CD/DVD (and HD DVDs)
ON GUARD
It uses Data Encryption Standard (DES) that has a key length of 56bits.
A
key block and disc ID are written into the ROM area to prevent illegal copying.
FEATURES OF BD:
With BD we can :
Record HDTV without any quality loss. Instantly skip to any spot on disc.
Record on one program while watching other on the disc. Create play list.
Automatically search for an empty space on the disc to avoid recording over a program.
PRESENTED BY:
CHRISTINE JOSE K
MCA Department Vidya Academy of Science and Techonology Thalakkottukara P.O, Thrissur, Kerala, India, Pin:680 501.
THANK YOU