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Dvd - College Paper

Dvd

is a new technology very similar to compact discs. A looks just like an ordinary compact disc, however a can hold up too 6 times as much as a CD! That's 4.7 gigabytes! This gives enough room to hold an entire movie at twice the quality of VHS with theatre quality sound (better than CD-quality). Since it is on a disc, you can jump to any scene instantly, and you never need to rewind.
The Different types of include:
-ROM

DVD-ROM stands for Digital Versatile Disc - Read Only Memory. It is an optical disk the same diameter as a CD, but unlike the CD’s capacity of 650 megabytes, it can hold up to 4.7 gigabytes of storage. Its capacity is over six times that of a CD and the reason for ...

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Disc - Random Access Memory, and is the approved format by the Official DVD Forum. DVD-RAM are dual sided and can hold up to 2.6 gigabytes per side. They use phase-change as a recording material, “wobbled land and groove” recording method, embossed pits for header information, Zoned Constant Linear Velocity (ZCLV) rotational control, and is a random-access, non-sequential medium. DVD-RAM-Compatible readers will require servos to handle switching between the lands and grooves. DVD-RAM drives will also need a decoder to handle scattered 32K ECC Blocks, something not needed for DVD-ROM and DVD+RW, since their blocks are contiguous.

DVD-RW

DVD-RW stands for Digital Versatile Disc - Rewriteable. It uses a phase-change-recording layer, a lot like the CD-RW. It allows a disc to be recorded, erased, and rewritten that is readable only in DVD read-only drives and players.

DVD-R

DVD-R stands for Digital Versatile Disc - Recordable, and it is the DVD version of the ...

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Dvd. (2004, January 31). Retrieved August 1, 2025, from http://www.essayworld.com/essays/Dvd/2292

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PAPER DETAILS

Added: 1/31/2004 08:00:07 AM
Category: Science & Nature
Type: Premium Paper
Words: 511
Pages: 2

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