Free online EVO to MTS converter

What the EVO format is

In the Video category, .evo is the HD DVD video container, also called an Enhanced VOB. HD DVD authoring tools and disc backups use it to store movie streams, typically MPEG-2 or VC-1 video with Dolby Digital, DTS, or other DVD-era audio formats. You may encounter EVO files in an HD DVD backup's HVDVD_TS folder or on systems used to archive HD DVD content.

An EVO file can contain navigation-related material and multiple streams, so selecting the correct video and audio tracks during conversion may be necessary.

What the MTS format is

.mts is an MPEG transport stream commonly used by AVCHD camcorders, Blu-ray-compatible workflows, and video editors. Typical AVCHD MTS files contain H.264/AVC video and Dolby Digital AC-3 audio, although the MTS extension itself does not guarantee a particular codec.

MTS is useful when a device or editor expects AVCHD-style transport streams. It supports HD video, multiple audio streams, and metadata-oriented transport-stream workflows, but it usually requires video transcoding rather than a simple filename change.

How to actually convert EVO to MTS

For a browser-based conversion, 101convert.com can convert the file for free without installing software. Upload the EVO file, choose MTS as the output, start the conversion, and save the resulting file after processing.

For local conversion and control over codecs, use FFmpeg:

1. Install a current FFmpeg build and place the EVO file in an accessible folder.
2. Inspect its streams with ffprobe input.evo. Identify the desired video and audio stream indexes, resolution, frame rate, and audio format.
3. For a broadly compatible AVCHD-style MTS file, run:

ffmpeg -i input.evo -map 0:v:0 -map 0:a:0 -c:v libx264 -preset medium -crf 18 -pix_fmt yuv420p -c:a ac3 -b:a 448k -ar 48000 -f mpegts output.mts

-map 0:v:0 and -map 0:a:0 select the first video and audio streams. Change the stream numbers if the EVO contains several tracks. The libx264 and AC-3 settings produce codecs commonly accepted by AVCHD-oriented applications; -crf 18 prioritizes quality, while values around 20–23 create smaller files.

If the source streams are already compatible and you only need a transport-stream container, try remuxing without re-encoding:

ffmpeg -i input.evo -map 0:v:0 -map 0:a:0 -c copy -f mpegts output.mts

Remuxing is much faster and preserves the original quality, but it may produce an MTS file that a strict AVCHD device cannot read. Use the transcoding command when compatibility is more important than speed.

Quality, compatibility, and limitations

• Transcoding from MPEG-2 or VC-1 to H.264 causes a generation loss. Lower CRF values improve quality but increase file size.
• Changing .evo to .mts does not convert the file; the container and, when required, the codecs must be changed.
• Some EVO files are encrypted or protected as part of commercial HD DVD content. FFmpeg and ordinary converters may not open them; conversion requires lawful access to an unencrypted source.
• MTS files can be larger than MP4 files at the same quality because MPEG transport streams carry additional packet and error-recovery overhead.
• Keep the original EVO until the output has been tested in the intended editor, player, or camera workflow.