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CREATED BY Santosh Devbhandari BSc IT (III)

COLLEGE FOR PROFESSIONAL STUDIES. TOPIC OF PRESENTATION DVD TECHNOLOGY. CREATED BY Santosh Devbhandari BSc IT (III). CONTENTS. Introduction of DVD Construction of DVD Types of DVD Physical Formats of DVD CD to DVD Comparison Advantages of DVD Conclusion.

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CREATED BY Santosh Devbhandari BSc IT (III)

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  1. COLLEGE FOR PROFESSIONAL STUDIES TOPIC OF PRESENTATION DVD TECHNOLOGY CREATED BYSantosh DevbhandariBSc IT (III)

  2. CONTENTS • Introduction of DVD • Construction of DVD • Types of DVD • Physical Formats of DVD • CD to DVD Comparison • Advantages of DVD • Conclusion

  3. Introduction of DVD • Digital Versatile Disk • Storage of a large amount of data • Use digital technology • Optical disc storage technology • Use a shorter wavelength laser-Red laser beam(625-650mm)

  4. DVD Construction • Thin, circular wafer of clear plastic and metal. • 4.75 inches (12 centimeters) in diameter

  5. DVD Construction Writing Mechanism

  6. DVD Construction Reading Mechanism

  7. Types of DVD Single Side - Single Layer (DVD-5) Single Side - Double Layer (DVD-9) Double Side - Single Layer ( DVD-10) Double Layer - Double Side (DVD-18)

  8. Physical formats of DVD • DVD-ROM • Is a high capacity data storage medium • DVD-Video • Is a digital storage medium for a feature-length motion picture • DVD-Audio • Is an audio-only storage format, similar to CD-Audio • DVD-R • Is similar to a CD/R which offers a write-once ,read many storage format • DVD-RAM • Was the first re-writable (erasable) DVD.

  9. Advantages of DVD • Digitally recorded so reliable. • Instant search to title, chapter, music track, and time code. • Durable (no wear from playing, only from physical damage). • Not susceptible to magnetic fields. Resistant to heat. • Writes in smaller pits

  10. Conclusion Thus, it is one of the most important, reliable and economic medium for storage of data like videos, pictures, movies, documents etc. As the data is written in binary format it will be easier for computer to read, write and erase the data in the DVD.

  11. ANY QUESTIONS

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