Blu Ray Disc PPT | Technical Seminar Blue-Ray Disc PPT by vithalerukula

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     Table of Content
HISTORY
THE NAME
FORMAT OF BD
TYPE OF BD
THE TECHNOLOGY
COMPARISON IN BUILDING BD AND DVD
COMPARISON IN BEAM SIZE
CD VS. DVD VS. HD-DVD VS. BLU-RAY
DISC
FEATURES OF BD
BLU-RAY‟S DURABILITY ADVANTAGE
BLU-RAY DENSITY ADVANTAGE
ON GUARD
DO MORE WITH…
              HISTORY
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
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, Philips,
    Samsung, Sharp, Sony).
Wavelength of laser that reads data: 405nm
Color of laser: Blue-violet which was developed by SHUJI
    NAKAMURA at NICHIA COPERATION.
            The Name
The blu-ray name is the combination of
 “blue”, for color of the laser that is used
 and “ray” for the optical ray.

The “e” in “blue” was purposefully left off,
 according to the manufacturers, because
 an everyday word cannot be a
 trademark.
         Format of BD
It comes in four different formats:
1. BD-ROM (read only): for reading recorded
     content.
2. BD-R (recordable): for PC data storage.
3. BD-RW (rewritable): for PC data storage.
4. BD-RE (rewritable): for HDTV (high
     definition television) recording.
       TYPES OF BD
SINGLE LAYER:
can hold data up to 25/27 GB that means
2hrs of HD video or about 13hrs of standard
video.
DOUBLE LAYER:
can hold data up to 50 GB that means
4.5hrs of HD video or about 20hrs of
standard video.
      Comparison in building
          BD AND DVD
           BD                          DVD
Data is placed on top of a   Data is sandwiched b/w
1.1 mm thick                 two polycarbonate layers,
polycarbonate layer.         each 0.6 mm thick.
Doesn’t suffer from          Suffer from
BIREFRINGENCE.               BIREFRINGENCE.
Doesn’t suffer from Disc     Suffer from Disc Tilt.
Tilt.
Hard coating is placed       No such hard coating is
outside to protect from      placed.
scratches or fingerprints.
Comparison in Beam size
CD vs. DVD vs. HD-DVD vs. Blu-ray Disc
           Features of BD
With BD we can:
 Record HDTV without any quality loss.
 Instantly skip to any spot on disc.
 Record any program while watching other on the
 disc.
 Create playlists.
 Edit or reorder programs recorded on the disc.
 Automatically search for an empty on the disc to
 avoid recording over the program.
 Access to web to download subtitles and other extra
 features.
 And many more…..
      BLU-RAY „S DURABILITY
           ADVANTAGE
Various hard coating technologies make Blu ray
disc most durable and family-friendly.
Hard coating technology provides resistances to:
–   Finger prints
–   Marks
–   Scratches
–   Dust
 Much more ROBUST than today‟s polycarbonate-
based CD/DVD‟s (and HD DVD‟s).
Blu-ray Density Advantage
              Higher density
              enables better data
              seek times.
              Shorter to travel for
              same amount of
              data results in the
              faster data seek.
              Better for random
              access of data.
           On Guard
Blu-ray discs are better armed than
 current DVD‟s. They come equipped with
 a secure encryption system – a unique
 ID that protected against video piracy
 and copyright infringement.
      Do More With…
More capacity , Density and
Performance.
More Industry Support/Consumer
Reach.
More Durable.
More interactive user experience.
More flexible content protection.
             CONCLUSION
Blu-ray is expected to challenge DVD’s run as the fastest
selling consumer-electronics item in history. If that
happens, the impact would be too big for the major
players to discount. For example, the number of films
sold on DVD more than doubled last year to over 37
million. In addition, almost 2.4. million DVD players were
bought in the past year. As Blu-ray is not compatible with
DVD, its success could upset the applecart of many
players. If the new format turns out to be much popular,
the demand for DVD players could come down
drastically
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