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The resulting video, especially when it is complex or changing quickly, may sometimes contain visual flaws, depending on the processing quality and amount of compression.
All of the following have been proposed as the words behind the letters DVD. "nothing." The original initialism came from "digital video disc." Some members of the DVD Forum (see 6.1) tried to express how DVD goes far beyond video by retrofitting the painfully contorted phrase "digital versatile disc," but this has never been officially accepted by the DVD Forum as a whole.
It's important to understand the difference between the physical formats (such as DVD-ROM and DVD-R) and the application formats (such as DVD-Video and DVD-Audio). DVD-Video (often simply called DVD) defines how video programs such as movies are stored on disc and played in a DVD-Video player or a DVD computer (see 4.1).
The difference is similar to that between CD-ROM and Audio CD.
Pointers to other DVD sites are scattered throughout the FAQ and in section 6.4.
The DVD FAQ is written by Jim Taylor, the author of DVD Demystified, Everything You Ever Wanted to Know About DVD, and Blu-ray Disc Demystified.