How to convert MP4 to MTS
- Add your .MP4 file - drop it in the box above or click to browse.
- Convert it to .MTS in a few seconds.
- Download your new .MTS file.
What to expect
- H.264 video may be rewrapped with little loss, but non-conforming sources are re-encoded.
- AVCHD imposes resolution and bitrate constraints the MP4 may not meet.
- Chapters and subtitle tracks are generally dropped.
Frequently asked questions
Does the video quality drop going to MTS?
MP4 is commonly H.264, the same codec AVCHD/MTS uses, so the video can often be carried into the transport stream with little or no change; if the source doesn't conform, a lossy re-encode is needed.
Why convert MP4 to MTS?
To put footage into the AVCHD transport-stream layout that some camcorders, Blu-ray authoring tools and older editing suites expect.
Where does an MTS file play?
VLC plays MTS on Windows, macOS and Linux; playback on phones and general editors is patchy, which is why MP4 is usually preferred for sharing.
What is lost in the conversion?
AVCHD expects specific resolutions and codecs, and MP4 chapters, soft subtitle tracks and some metadata typically do not survive into the MTS stream.
Programs that convert MP4: Free Studio · Freemake Video Converter · MediaCoder · Adobe Premiere Pro · Nero Multimedia Suite · WinX Video Converter · iVI - iTunes Video Importer · iSkysoft Video Converter for Mac
