Basic Facts about DVD
During the many years that you used DVDs, have you ever stopped and thought about what it stands for? In my experience, whenever I'm asked what DVD stands for, I always go for the safest answer - digital video disc. Actually, that's what DVD originally stood for, but through the years, the initials took several variants including "digital versatile disc." But no matter what DVD stands for, there's only one way to describe what it is: DVD is an optical disc technology used for storing video, audio, and computer data.
Comparing DVD with CD, the former is a bigger (meaning storage) and faster version upgrade of the CD. Its usage includes home entertainment, computers, and business information. The DVD has replaced many previously popular home video entertainment formats including laserdisc and videotape.
What has made DVDs such a popular consumer video product? Reasons for its popularity include a storage capability of over two hours of high-quality, clear and crisp video, widescreen movie support, up to eight tracks of digital audio and 32 subtitles, automatic seamless video branching, and up to nine camera angles.