A DVD, which stands for Digital Versatile Disc, is a type of optical disc storage technology that can store a significant amount of data. It's widely used for distributing movies, software, and other multimedia content. 

"A DVD is a portable and versatile optical disc used for storing digital information such as video, audio, and data. It offers high-capacity storage, with a standard DVD holding up to 4.7 gigabytes of data. DVDs are played on dedicated DVD players or computers with a DVD drive, and they are popular for their durability and the ability to be read by a wide range of devices. They are commonly used for watching movies, playing video games, and installing software on computers."