MIME Types and File Extensions
.ogs - application/ogg
* can contain any logical bitstreams multiplexed together in an ogg container
.ogg - audio/ogg
* audio in ogg, e.g. vorbis, speex, flac * .ogg has traditionally been used for Ogg Vorbis files
.ogv - video/ogg
* a/v in ogg, e.g. Theora, Theora + Vorbis, Theora + Speex, Theora + flac