Tim Benham

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• Presented by
• Tim Benham
• Colleen Johnson
• Dave Neuzil
• Jamenya Shipp
• Idorenyin Udoisa

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What is Blu-ray?

• Blu-ray is the name of a next-generation optical
  disc.
• CDs, DVDs, and Blu-ray are all discs the same
  size.
• However each of these discs can hold more data,
  audio and video than the previous Why is this?
  
• You will soon find out
• Tim -- Introduction of Blu-ray
• Dave -- Blu-ray versus HD-DVD
• Colleen -- Applications of Blu-ray
• Jamenya -- Advantages
• Idorenyin -- Disadvantages
• Group -- Conclusion and Quiz

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Why do we need Blu-ray?
In 1998 HDTVs were appearing in the consumer
market, However there was only standard-definition
movies available. There was no media format
that could store the large amounts of data need
to create HD movies. The Blu-ray format was
developed to enable recording, rewriting and
playback of high-definition video, as well as
storing large amounts of data. Blu-ray disks
offer more than five times the storage of a
regular DVD.
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How do you read an Optical Disk?

• The digitally encoded audio and video information
  on a disc is stored in pits, which are spiral
  grooves that run outward from the center of the
  disc.
• A laser reads the pits, and plays the audio and
  video.
• Blu-ray uses a blue-violet laser to read and
  write data, while DVDs use a red laser and CDs
  use an Infrared laser.
• The blue laser has a shorter beam (405
  nanometers) than a red laser (650 nanometers)
  this allows the blue laser to focus at a higher
  precision.
• To have more data on a disc, the pits must be
  smaller and closer packed together.
• The smaller and closer the pits, the more precise
  the laser that reads the pits must focus.

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History of Blu-ray

• Shuji Nakamura, a professor at the University of
  California, Santa Barbara, invented practical
  blue laser diodes.
• Using blue laser diodes Sony teamed up with
  Pioneer started to develop technologies to allow
  more data to be stored on a disk.
• In October of 2000 the first prototypes were
  unveiled at the Combined Exhibition of Advanced
  Technologies trade show.

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History of Blu-ray

• In February 2002 the project was officially
  announced as Blu-ray and the Blu-ray Disc
  Association was founded by Sony, Matsushita,
  Pioneer, Philips, Thomson, LG Electronics,
  Hitachi, Sharp, and Samsung.
• The Blu-ray Disc physical specifications were
  finished in 2004.
• Early 2006 the BD-ROM specifications were
  finalized and a secure Digital rights management
  platform was agreed upon.
• June 2006 Blu-ray players where released into
  the market.
• June 2006 Blu-ray movies where released into the
  market.

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Blu-ray Vs. HD DVD
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Blu-ray Vs. HD DVD

• Twenty years ago a similar battle was waged.
• VHS vs. Betamax
• Sony Corp. runs with the more advanced Betamax
  but is driven out of the market by the more
  popular VHS.
• Infuriated by the defeat Sonys CEO vows, This
  will never happen to Sony Again!
• Recently, Sony again opts for the superior
  technology in Blu-ray.

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Blu-ray Vs. HD DVD

• Blu-rays players
• Samsung
• Pioneer
• Sony (Playstation 3)
• HD DVDs players
• Toshiba
• Intel
• Microsoft (Xbox 360)

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Blu-ray Vs. HD DVD

• HD DVD is first to the market
• Toshiba strikes early, offering two HD DVD
  players for around 800 each.
• Sonys CEO makes it clear that championing
  Blu-ray is the companies current corporate
  mission.

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Blu-ray Vs. HD DVD

• In an effort to establish each as successor to
  DVD both Blu-ray and HD DVD take on differing
  strategies.
• HD DVD offers a cheaper product, attempting to
  gain the attention of the more price conscious
  consumer.
• Sony attempts to gain the support of many
  Hollywood studios for its Blu-ray discs.

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Blu-ray Vs. HD DVD

• Blu-ray's strategy works, solidifying its
  position as successor to the outdated DVD.
• January 2008, Warner Bros commits to Blu-ray.
• As a direct result, Toshiba decides to stop
  producing HD DVDs.

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Applications of Blu-ray

• List of products available with Blu-ray
• Players /recorders
• Computer entertainment systems
• Hardware for computers
• Hardware - BD drives
• Blank Media
• Camcorders
• Home theater
• Printers

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Data Storage/ Backup

• Business are investing in ways to increase backup
  and data storage to enable them to store vast
  amounts of data.
• The increase in storage is due to the legal
  requirements that business have in regards to
  archiving and keeping business records.
• The need for more storage is also due to the
  increase of paperless business.
• The Blu-ray Disc has 5-10 times more storage
  space than the DVD, which has 5 times more space
  than the CD.

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Data Storage/ BackupTDK

• They develop BD-R (write once) and BD-RE
  (rewritable) in 25 GB and 50 GB.
• High precision Spin Coating
• This technology enables the manufacturer to
  create a smooth and precise cover layer.
• Having a smooth layer is important in regards to
  the smaller bandwidth of the blue-violet laser.
• DURABIS2
• This technology increases the scratch resistance
  by 100 times a normal disc.
• It also resists an accumulation of dust.
• Scratches and dust can make a BD unreadable.
• TDKs special recording layer technology
• Higher speeds of 72Mbps (2x)
• There are multiple recording layers possible for
  more storage.
• TDK has prototypes for 100GB and 200GB Blu-ray
  Disc.

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Computers

• Some of the largest computer manufacturers are
  planning to or already have Blu-ray drives.
• The BD Drives for the computer enable the
  writable, rewritable, and playback features for
  the Blu-ray Disc.
• Panasonic developed the first slim BD drive.
• Included reverse compatibility
• Utilizes 3 different wavelengths
• Infrared (780 nm) for CD
• Red (650 nm) for DVD
• Blue-violet (405 nm) for BD

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Other applications of Blu-ray

• Film and TV
• The next generation of movie formats
• Ability to record HDTV and get the HD quality.
• Video Games
• Playstation 3

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Advantages of Blu-ray

• Java Software Support
• Hard coating
• Copying Speed and Data Storage

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Java Software Support

• Java Software Support was created by James
  Gosling.
• Java is used to implement interactive menus on
  Blu-ray discs. (Blu-ray Disc)
• Java Software Support is a requirement on all
  Blu-ray players.
• Java Virtual Machines will allow updates to
  Blu-ray Discs via the internet, adding content
  such as additional subtitle languages and
  promotional features that are not included on the
  disc at pressing time. (Blu-ray Disc)
• Java Virtual Machines are not a requirement for
  Blu-ray players, but is a product enhancement
  that is an option.

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Hard coating

• The data on Blu-ray Discs are closer to the
  surface than on DVDs, making it easier for them
  to be damaged.
• Scratches wee a big concern for Blu-ray Discs and
  a scratch protection coating was created.

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Hard Coating

• TDK was the first to develop the protection
  coating, which is called Durabis.
• Sony and Panasonic invented their own coating for
  their discs.
• Sony sprays its discs with both scratch-resistant
  and anti-static coating.
• Verbatims discs are sprayed with ScratchGuard.
• The coatings that are sprayed on the discs, will
  prevent the information on from being damaged.

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Copying Rate and Data Storage

• The copying rate of both single and dual layer
  disc depends on the drive speed.

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Copying Rate and Data Storage

• The data storage on Blu-ray Discs are almost
  double HD DVD.
• A single layer disc can hold 25 GB.
• A dual layer disc can hold 50 GB.

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Disadvantages of Blu-ray

• Cost
• Developing Technology
• Threat of Substitutes

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Cost

• The average Blu-ray player
• costs around 1000
• Initially, the Blu-ray discs
• will be more costly to produce
• than HD or the standard DVD media

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Developing Technology

• The Blu-ray standard is still evolving
• There are still very few movies available on
• Blu-ray
• Blu-ray is still in the early growing pains phase

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Threat of Substitues

• Blu-ray uses hardware
• which may be replaced
• with flash memory
• On Demand and Online
• movie rental sites may
• put the physical disc to rest

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Conclusion

• Blu-ray is a digital media format for optical
  disks that uses blue laser diode due to its
  narrow focus point.
• Blu-ray has become the industrys new preferred
  format over HD DVD.
• Businesses will be able to use Blu-ray drives in
  computers and laptops for more data storage and
  backup.
• Advantages of Blu-ray
• Java Software Support allows users to have access
  to menus that are not preset.
• The hard-coating of Blu-ray will keep the discs
  from scratches, prolonging the useful life of the
  disc.
• The copying rate and data storage can hold up to
  double the storage rate of a HD DVD, plus the
  copying rate of both single and double layer
  discs are extremely fast.

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Conclusion cont.

• Disadvantages of Blu-ray
• Costs to produce the Blu-ray products are high.
• Hardware support is slowly gaining speed, but the
  Playstation 3 definitely has helped Blu-ray gain
  popularity.
• The future for Blu-ray
• It is going to become the optical disc format
  that takes over for DVDs.

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Our Opinion

• We dont feel that Blu-ray is going to be long
  lasting.
• With research and development continuously
  introducing new innovations, we feel that another
  innovation will come soon to replace the Blu-ray
  format.
• Flash drives are also growing in storage capacity
  and can be much more mobile that disks. (example
  flash drive movies)

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Quiz

• What color laser does Blu-ray use?
• A. Blue-violet
• B. Fuchsia
• C. Red
• D. Purple
• Toshiba is the main supporter of Blu-ray
• A. True
• B. False
• What wavelength does the blue-violet laser diode
  operate on?
• A. 405 nm
• B. 650 nm
• C. 780 nm
• D. 450 nm

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Questions