What You Need To Know About DVDs
Digital Versatile Discs or Digital Video Discs, commonly known as DVDs, are the new digital medium for storing large amounts of data, particularly high resolution video and audio resources. The origin of the DVD can be traced back to 1997, when it was first developed and introduced into the market by the computer and movie industries alike. Presently, DVDs are extensively supported by leading electronics companies, computer hardware companies, and movie and music studios. As a result, DVDs are turning out to be one of the fastest emerging consumer products in history.
DVDs are virtually identical to CDs in their outer appearance but the key point of difference between them is the amount of storage capacity. DVDs can store much more data than CDs. DVDs can be single or double-sided, and can have two layers on each side. DVDs can be recorded on both sides, whereas CDs can be recorded only on one side. Single-sided, single-layer standard DVDs can store about seven times more data than ordinary CDs. DVDs, with a lifespan of more than 100 years, offer advanced visual quality when compared to CDs. These discs can also store the utmost quality still images, audio, and other multimedia in addition to video files. DVDs feature advantages such as interactive menus, section searches, multiple video and audio tracks and much more. DVDs ensure that the data delivered is precisely the same as the one recorded, without any loss of quality.
DVDs make use of MPEG-2 file and compression standard for video and Dolby AC-3 for enhanced quality audio. There are different file formats for DVDs. DVD-Video is the format intended for full-length movies that are suited for our television sets. DVD-ROM is the sort of drive and disc for use on computers. DVD-Audio, supporting coding systems such as Dolby Digital, DTS and DSD, is a new generation digital music format which delivers high-fidelity audio content.
DVDs are to be stored in protective cases and kept away from excessive heat or direct sunlight. Caution is to be taken in using cleaning solvents or solutions, since some of these may damage the layers.
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