Blu-Ray Disc

Prepared by : Jakasaniya Ravi

HISTORYBlu-ray developed by Blu-ray disc

association to store large amount of data, HD videos etc..

In Blu ray development Apple, HP, LG, Hitachi, Panasonic, Sony, Philips were associated.

THE NAMEThe Blu-ray name is combination

of “blue” for the color of the laser that is used and “ray” for optical ray.

The “e” in blue was purposefully left off, according to manufacturers, because an everyday word cannot be a trademark.

WITH BD WE CANRecord HDTV without any quality

loss. Instantly skip to any spot on

disk .Record one program while

watching other on the disk.Create playlists.Edit or reorder programs

recorded on disc.Play HD games on PC or PS3.

BLU-RAY’S DURABILITY ADVANTAGEVarious hard coating technologies

make blu ray disk most durable and family friendly

Hard-coating technology provides resistance to:

Fingerprints Marks Scratches Dust

TYPES OF BD• Single layer

• Can hold up to 25/27 GB that means 2 hrs of HD video or about 13 hrs of standard video

• Double layer• Can hold data up to 50 GB that means

4.5 hrs HD video or more than 20 hrs of standard video

FORMAT OF BD

It comes in 4 different formatsBD-ROM(read only): for reading

recorded content.BD-R(recordable): for PC data

storage.BD-RW(rewritable): for PC data

storage.BD-RE(rewritable): for HDTV(high

definition television) recording.

WRITING SPEED1x speed is defined as 36Mbps.

Most of Blu-ray Disc writing and reading speed is near about 2 x.

SIZE

BLU-RAY’S DENSITY ADVANTAGE

Higher density enables better data seek times

Shorter to travel for same amount of data results in faster data seek

Better for random access of data

ADVANTAGES AND DISADVANTAGESAdvantages Disadvantages

Can contain HD video formats. In market BD video format price is much higher compare to DVD and CD.

It has larger capacity of store data.

Writing speed is slower.

THANK YOU