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 .mpg 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 .mpg 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.
The .mpg extension is the three-letter spelling of .mpeg, applied to identical MPEG-1 or MPEG-2 program stream data. Files named .mpg and .mpeg are interchangeable at the byte level, so players and converters treat them the same and differ only in the label they display. For this route the practical draw is opens in everything from Windows Media Player to ffmpeg and decades of tooling make its behavior thoroughly predictable — balanced against dated compression wastes space compared with any modern codec, which is worth knowing before you commit a large batch.
The usual reason to take .mpg 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 opens in everything from Windows Media Player to ffmpeg, which is exactly what you want for working with recordings from PC TV capture cards.
| Aspect | Blu-ray transport stream (.m2ts) | MPEG video (.mpg) |
|---|---|---|
| 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 | byte-for-byte the same program stream format standardized in ISO/IEC 11172 and ISO/IEC 13818 |
| Strongest at | archiving personal Blu-ray projects and camcorder discs | working with recordings from PC TV capture cards |
| Weak spot | file sizes are very large, often tens of gigabytes per title | dated compression wastes space compared with any modern codec |
| Metadata | chapter and playlist information lives in separate CLPI and MPLS files on the disc, not inside the .m2ts stream | nothing beyond the raw stream itself, so titles and descriptions live only in the filename |
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 .mpg in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if MPG 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 MPG file. Outputs keep the original filename with the .mpg extension.
Since m2ts is container-oriented and mpg is container-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .mpg 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.
Any application that accepts .mpeg files accepts .mpg without complaint, since the difference is purely historical. That covers VLC, Windows Media Player, and QuickTime Player, but not the HTML5 video element in any browser.
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.
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .m2ts → .mpg → .m2ts is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.