DVD
From MythTV Official Wiki
DVD (sometimes known as "Digital Versatile Disc" or "Digital Video Disc") is an optical disc storage media format that can be used for data storage, including movies with high video and sound quality. DVDs resemble compact discs as their physical dimensions are the same (12 cm or occasionally 8 cm in diameter) but they are encoded in a different format and at a much higher density. The official DVD specification is maintained by the DVD Forum.
