Add your M2TS file
Drop one or more .m2ts files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
M2TS to OGV
Pulling the soundtrack out of a .m2ts video into .ogv audio keeps what you can hear and drops the picture entirely. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop M2TS files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting Blu-ray transport stream to Ogg video
Pulling the soundtrack out of a .m2ts video into .ogv audio keeps what you can hear and drops the picture entirely. An .m2ts file is a BDAV transport stream, the container Blu-ray discs and AVCHD software use for high-definition video. Open a Blu-ray's BDMV/STREAM folder and every title is an .m2ts file pairing H.264, VC-1, or HEVC video with multichannel audio.
An .ogv file is video packed in the Ogg container, typically compressed with the Theora codec and paired with Vorbis audio. The .ogv extension separated video from Ogg audio when Xiph.Org split its file naming, and it appears mostly in open-source projects and Wikipedia's media archives. For this route the practical draw is royalty-free from container to codec with no patent baggage and streams and seeks well despite its age — balanced against theora's compression is a full generation behind even VP8, which is worth knowing before you commit a large batch.
Why convert M2TS to OGV?
The usual reason to take .ogv audio out of a .m2ts file is that only the sound matters — a talk, interview, song, or podcast segment. Keeping the video stream would waste storage, and a dedicated audio file is easier to trim, tag, and play. On the source side, file sizes are very large, often tens of gigabytes per title; on the target side, the payoff is royalty-free from container to codec with no patent baggage, which is exactly what you want for playing media downloaded from Wikimedia Commons.
M2TS vs OGV at a glance
| Aspect | Blu-ray transport stream (.m2ts) | Ogg video (.ogv) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Container — quality depends on the codecs and settings inside |
| How it stores data | 192-byte packets whose arrival timestamps enable the precise buffer control disc players require | uses Ogg's page-and-packet framing, which supports live streaming and survives truncation gracefully |
| Strongest at | archiving personal Blu-ray projects and camcorder discs | playing media downloaded from Wikimedia Commons |
| Weak spot | file sizes are very large, often tens of gigabytes per title | theora's compression is a full generation behind even VP8 |
| Metadata | chapter and playlist information lives in separate CLPI and MPLS files on the disc, not inside the .m2ts stream | vorbis comments in the audio stream carry artist and title tags, and the Ogg Skeleton track can describe the streams themselves |
Pick OGV as the output
Select .ogv in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if OGV is selectable, the route is real and validated.
Convert on your device
Press Convert. A WebAssembly FFmpeg build demuxes the audio track and re-encodes it locally; the video stream is simply discarded.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid OGV file. Outputs keep the original filename with the .ogv extension.
M2TS to OGV questions, answered
Will converting M2TS to OGV lose quality?
Since m2ts is container-oriented and ogv is container-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .ogv itself requires.
Is it private to convert M2TS files here?
Yes — the .m2ts file is processed inside your browser tab and never uploaded. A WebAssembly FFmpeg build demuxes the audio track and re-encodes it locally; the video stream is simply discarded. Close the tab and the file is gone from memory.
Where will the OGV file work?
Firefox retains Theora playback and Chromium-based browsers have begun deprecating theirs, while Safari and mobile platforms never supported .ogv at all. VLC and ffmpeg decode it everywhere, making conversion to WebM or MP4 straightforward.
Will the OGV file be bigger or smaller than my M2TS?
Much smaller — the video stream is usually 80–95% of a .m2ts file's weight, and it is discarded entirely. The remaining audio is re-encoded at the bitrate implied by your quality setting.
What happens to the metadata in my M2TS file?
This converter strips container metadata deliberately (the FFmpeg command runs with metadata mapping disabled) so exported files do not leak recording details. In the source, chapter and playlist information lives in separate CLPI and MPLS files on the disc, not inside the .m2ts stream; none of it is transmitted anywhere because the file never leaves your browser.
Can I convert OGV back to M2TS?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .m2ts → .ogv → .m2ts is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.