Theora

Writable

video

Ogg is a free, open container format maintained by the Xiph.Org Foundation. The Ogg container format can multiplex a number of independent streams for audio, video, text, and metadata. Theora is a free, lossy video compression format also developed by the Xiph.Org Foundation.

Identify it

Extensions	`.ogg.ogv`
MIME types	`video/oggvideo/theora`
Signatures	`4f6767530002` at byte 0 (Ogg Theora Video variant 1)
PRONOM	`fmt/945`
Wikidata	`Q372626`

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Open it

libtheoraOpen sourcereads and writes · 3-clause BSD License
SynfigOpen sourcewrites · GNU General Public License, version 2.0
Visualization ToolkitOpen sourcereads and writes · 3-clause BSD License
Apache TikaOpen sourcereads · Apache Software License 2.0
FlowplayerOpen sourcereads · GNU General Public License
LiquidsoapOpen sourcereads · GNU General Public License, version 2.0
mutagenOpen sourcereads · GNU General Public License, version 2.0
PhotoRecOpen sourcereads · GNU General Public License
Q117725Open sourcereads · GNU General Public License, version 2.0
LiVESreads
Media Player (Windows 11)reads

Convert it

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Sources

From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

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