DIFFERENCE OF VCD AND DVD

Competency :Improve signal reproduction means of audio video CD

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DIRECTION

CAN DIFFERENTIATE VCD AND DVD FORMAT

CAN COMPARE THE QUALITY OF THE VCD WITH DVD

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PHYSICAL FORMAT

DVD has a data capacity of a larger, namely:1. Pit size is smaller 2. Spaces tracks more thin 3. Layer double capacity

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CAPACITY COATINGS

1.SINGLE-SIDED, SINGLE-LAYERED

DVD-5, this format is able to store 4.7 GB of data digital

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2. SINGLE-SIDED, DUAL-LAYERED

Construction DVD-9 to maintain approximately 8.5 GB

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3. DOUBLE-SIDED, SINGLE-LAYERED

DVD-10, pattern construction has 9.4 GByte capacity data

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4. DOUBLE-SIDED, DUAL-LAYERED

Construction DVD-18 can maintain the data about 17 GByte

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STORAGE OF DATA ON THE DVD

DVD layer can be written that has a spiral-shaped track data, the single layer DVD, is always a circle of track in the disc towards outside

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APPLICATION FORMAT

1.DVD-VIDEO

DVD video is the principle form of video and audio format used for movie, music concert audio and video that is based on the program

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2. DVD-AUDIO

Type DVD audio channel high-resolution stereo and multi-channel (more than 6 channels diskrit) audio

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3. DVD-ROM

DVD ROM format is a data storage such as CD ROM. This allows for data archival and mass storage, as well as interactive and web-based or content

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PROCESS OF READING CD

Basic DVD player is working laser focus on the track bump Bump reflective in a way different than the area of the flat disc and OPTO electronic sensors to detect changes in the light bounceCommittee interpret the electronic changes as a reflection of the order of reading the bits and bytes arranged in

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THE END

By. Setyo Harmadi,ST SMK Muhammadiyah 3 Yogyakarta