Free online M2V to MPG converter

Some DVD authoring programs, legacy media players, and editing applications accept an MPEG program stream with an .mpg extension but reject an elementary .m2v file. Converting usually means placing the MPEG-2 video stream in an MPG container, although an audio track may need to be added separately.

What the M2V format is

.m2v normally identifies an MPEG-2 elementary video stream. It contains video only, with no audio, subtitles, menus, or general-purpose container metadata. DVD authoring software, MPEG encoders, and tools that demultiplex VOB or MPEG files commonly create M2V files.

You may encounter an M2V after extracting the video from a DVD, exporting video for DVD production, or separating audio and video with a demultiplexer. Because it is an elementary stream, some players open it directly while consumer software expects a program-stream file instead.

What the MPG format is

.mpg generally contains an MPEG program stream, commonly MPEG-1 or MPEG-2 video combined with audio such as MPEG-1 Layer II or, in some workflows, AC-3. Program streams interleave the tracks and add timing information so compatible players and authoring applications can process them as one file.

MPG is useful for DVD-era workflows, older hardware, broadcast and editing applications, and software that does not accept a video-only M2V stream. The extension itself does not guarantee a particular codec, resolution, bitrate, or audio format.

How to convert M2V to MPG

For a free conversion without installing software, use the conversion tool on 101convert.com. Upload the M2V file, select MPG as the output format, start the conversion, and download the resulting file when processing finishes.

For local processing, FFmpeg can usually repackage MPEG-2 video without re-encoding:

ffmpeg -i input.m2v -c:v copy -f mpeg output.mpg

This creates an MPEG program stream containing the original video and no audio. If you have a separate compatible audio file, combine it while copying both streams:

ffmpeg -i input.m2v -i audio.mp2 -map 0:v:0 -map 1:a:0 -c:v copy -c:a copy -f mpeg output.mpg

Replace audio.mp2 with the actual audio filename. If the audio codec is unsupported by the target device, encode it as MPEG-1 Layer II:

ffmpeg -i input.m2v -i audio.wav -map 0:v:0 -map 1:a:0 -c:v copy -c:a mp2 -b:a 192k -f mpeg output.mpg

If the receiving application requires a fresh MPEG-2 encode rather than a remuxed stream, use:

ffmpeg -i input.m2v -c:v mpeg2video -b:v 6000k -c:a mp2 -b:a 192k output.mpg

When no audio input is supplied, omit the audio options. FFmpeg will not invent an audio track.

Quality, compatibility, and limitations

Using -c:v copy does not recompress the video, so it avoids additional generation loss and is faster than encoding. It also cannot change the M2V stream's resolution, frame rate, bitrate, interlacing, or MPEG profile; incompatible source parameters may still be rejected by the destination device.

M2V files from DVD workflows are often interlaced MPEG-2 video at 720×480 or 720×576. Preserve the original interlacing for DVD or television playback unless the target software specifically requires deinterlacing. An MPG file containing only video may still fail in applications that require multiplexed audio, so add a synchronized audio stream when necessary.