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.
Pulling the soundtrack out of a .m2ts video into .ogg audio keeps what you can hear and drops the picture entirely. Free, private, and validated — the file never leaves your browser.
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.Pulling the soundtrack out of a .m2ts video into .ogg 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 .ogg file almost always means Vorbis-compressed audio in the Ogg container, the free-software world's answer to MP3. The .ogg extension originally covered any Xiph media; audio kept the name when video moved to .ogv, and game developers and Wikipedia still lean on it heavily. For this route the practical draw is patent-free from its first release and strong quality at mid-range bitrates — balanced against apple's Music app and iOS offer no native playback, which is worth knowing before you commit a large batch.
The usual reason to take .ogg 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 patent-free from its first release, which is exactly what you want for shipping game audio assets without codec royalties.
| Aspect | Blu-ray transport stream (.m2ts) | Ogg audio (.ogg) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Lossy — discards detail it judges invisible to shrink files |
| How it stores data | 192-byte packets whose arrival timestamps enable the precise buffer control disc players require | vorbis is an MDCT-based lossy codec tuned through a quality scale (-q) rather than fixed bitrates |
| Strongest at | archiving personal Blu-ray projects and camcorder discs | shipping game audio assets without codec royalties |
| Weak spot | file sizes are very large, often tens of gigabytes per title | apple's Music app and iOS offer no native playback |
| Metadata | chapter and playlist information lives in separate CLPI and MPLS files on the disc, not inside the .m2ts stream | vorbis comments, the flexible key=value system shared with FLAC and Opus, plus METADATA_BLOCK_PICTURE for embedded cover art |
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.
Select .ogg in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if OGG is selectable, the route is real and validated.
Press Convert. A WebAssembly FFmpeg build demuxes the audio track and re-encodes it locally; the video stream is simply discarded.
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid OGG file. Outputs keep the original filename with the .ogg extension.
Since m2ts is container-oriented and ogg is lossy-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .ogg itself requires.
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.
Chrome, Firefox, and Edge have decoded Ogg Vorbis for many years, and Android plays it natively, while Safari and iOS remained the notable holdouts until only recently. Dedicated players such as VLC and foobar2000 cover the desktop everywhere.
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.
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.