What is a DVD?

This article is a factual explanation of a DVD.

What is a DVD?

A DVD, abbreviation (in English) of “versatile digital disc” or “digital video disc”, is an optical disc capable of storing media contents, including data, audio and video. In many cases, DVDs are capable of storing all three.

Storage capacities of a DVD

DVDs come in multiple types and storage capacities. DVDs can have a single side, two sides, a single layer or two layers, all dictating the amount of media content that the DVD can store. The storage capacities of DVDs range from 1.46 GB on a single-sided DVD and one layer to 17.08 GB on a two-sided, two-layer DVD.

DVD variations

DVD variations also consist of DVD-R, DVD + R, DVD-RW, DVD + RW and DVD-Ram that describe the way in which media content is stored on the disc. DVD-R and DVD + R are capable of being written with data (audio, video, data) only once, while DVD-RW, DVD + RW and DVD-Ram are capable of being written, erased and rewritten multiple times.

DVD-Audio and DVD-Video

DVDs also come in concentrated formats, such as DVD-Audio and DVD-Video, catering only to one type of media content. DVD-Audio discs are capable of including more music at a higher audio quality. DVD-Video discs have higher resolution capabilities than traditional video cassettes, making them more exciting and appealing to watch media there. DVD-Video discs also have more storage capacity than video cassettes, allowing for more extras, such as comments, additional endings and special features to be included.

Uses of the DVD

Apart from home entertainment, DVDs are often used in academic and professional settings.Proposals, presentations, audio and video files can be stored on a DVD. The compact nature of a DVD makes it ideal for sending it around the country, carrying it in a backpack or storing it for future use.

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