OGV (Ogg Video) is a digital video file format developed by the Xiph.Org Foundation as part of the Ogg multimedia project. It is an open-source video format that is designed to provide high-quality video playback while maintaining relatively small file sizes. OGV files use the Theora video codec and the Vorbis audio codec, which are both open-source and royalty-free codecs. The format is designed to be compatible with a wide range of devices and media players, making it a popular choice for distributing video content online. OGV files can be played back on a variety of media players, including VLC, Firefox, and Chrome, and can also be converted to other more widely supported video formats like MP4 or AVI using compatible media conversion software. Overall, OGV is a useful video file format for storing and sharing high-quality video content, particularly for open-source and community-driven projects. However, it is not as widely used as more modern video file formats like MP4 or MOV.