A Digital Versatile Disc, commonly known as a DVD, is an optical disc storage format that can hold large amounts of data, including video, audio, and computer files. Introduced in the mid-1990s, DVDs became popular for distributing movies and software due to their higher capacity compared to CDs (Compact Discs). A standard single-layer DVD can store about 4.7 gigabytes of data. DVDs come in various formats, including DVD-Video for movies and DVD-ROM for data storage. They are read by laser technology in DVD players and computer drives, allowing users to enjoy high-quality video and audio. Despite the rise of digital streaming, DVDs remain a popular choice for physical media.