Transcript
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
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