M2V to MTS Converter

Convert M2V to MTS Online

This converter wraps a raw MPEG-2 video stream into an MTS (AVCHD) file so you can drop DVD-project footage into a camcorder-style editing timeline. One thing to know up front: a true .m2v is video only, so the MTS it produces will be silent — the soundtrack lives in a separate sibling file, and getting it back means converting that file instead. Details and the fix are below.

How to Convert M2V to MTS

1. Upload Your M2V File: Drag and drop your .m2v onto the page, or click "+ Add Files" to choose it from your computer. You can queue several clips to run with the same settings.
2. Pick a Quality Preset: Open "Show All Options" and choose a Quality Preset (the Preset dropdown defaults to Very High (Recommended)), or switch File Compression to Constant Bitrate, Variable Bitrate, or Constant Quality to set the rate yourself. AVCHD is an H.264 format, so MTS output encodes to H.264 by default.
3. Set Resolution or Trim (Optional): Video resolution defaults to Keep original; use Preset Resolutions or Width × Height to rescale, or use Trim to export just part of the timeline. A DVD-era SD source stays standard-definition — upscaling will not add real detail.
4. Convert and Download: Click "Convert" and download your .mts file. No sign-up, no watermark.

M2V vs MTS at a Glance

Frequently Asked Questions

Why does my M2V to MTS file have no sound?

Because a true .m2v is an MPEG-2 video elementary stream and carries no audio at all. The MPEG-2 standard keeps video (ISO/IEC 13818-2) and audio in separate elementary streams and only joins them inside a container, so a bare .m2v is picture-only. The MTS this tool writes is a complete, playable video container — but there is no audio stream in the source to mux into it, so the result plays silently. The soundtrack is in a sibling file (.ac3 or .mp2 next to the .m2v), or in the original .mpg/.vob it was demuxed from. To keep the sound, convert that file instead: MPG to MTS or VOB to MTS.

The clip played with sound earlier — where did the audio go?

It is sitting next to your .m2v as a separate file. DVD and SVCD authoring tools demux a recording into a video .m2v plus a matching audio file with the same base name — clip.m2v and clip.ac3 (DVD) or clip.mp2 (SVCD). Players such as VLC automatically pair the two during playback, which is why you heard sound, but that pairing is never baked into the .m2v itself. Convert the original muxed container — the .mpg or .vob — and the audio rides along into the MTS.

Will converting MPEG-2 to AVCHD improve the quality?

No. AVCHD uses H.264, and your .m2v is already MPEG-2, so this is a lossy-to-lossy re-encode: the H.264 pass cannot recover detail the MPEG-2 compression already discarded, and a fresh lossy encode is slightly softer than the source. A DVD-era standard-definition .m2v (typically 720×480 or 720×576) also stays standard-definition — wrapping it as MTS does not make it HD. The point of this conversion is workflow compatibility (getting the footage into an AVCHD-style editor), not a quality gain.

Should I convert M2V to MTS, or to MP4?

For most people, MP4 is the better target. MTS/AVCHD makes sense when a specific camcorder-oriented editor or device expects .mts files; if you simply want a clip that plays widely and edits easily, M2V to MP4 gives you the same H.264 video in a friendlier, more universally supported container. Both will be silent if the source is a true video-only .m2v, so the sibling-audio caveat above applies either way.

Can I go the other direction, from MTS back to M2V?

Yes. If you have an MTS/AVCHD clip and need the bare MPEG-2 video stream for a DVD-authoring step, use MTS to M2V. Note that the reverse conversion mirrors this one: an .m2v is video-only, so the audio track from the MTS does not travel inside the .m2v — it would need to be exported as a separate file. In our testing, a true demuxed .m2v converts to a clean, playable MTS, but the output is silent every time unless the source actually contained an audio stream.

How are my files handled, and are they kept private?

Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — never shared or made public. There is no sign-up and no watermark.