Free online M2V to XVID converter

Older DVD players, media appliances, and editing applications may accept Xvid in an AVI container but not an MPEG-2 M2V stream. Converting can also reduce the video size for sharing, although it re-encodes already compressed footage.

What the M2V format is

M2V is an MPEG-2 elementary video stream. It contains video only; audio is normally stored separately in an MP2, AC-3, or WAV file. DVD-authoring software, MPEG-2 encoders, broadcast tools, and video editors create M2V files, and they commonly appear after demuxing a DVD VOB or an MPEG program stream.

Because M2V is an elementary stream, some players may display it without sound or may not recognize it until it is placed in a container such as MPG or AVI. Inspect the source before conversion with ffprobe input.m2v to check its dimensions, frame rate, interlacing, and duration.

What the Xvid format is

Xvid is an implementation of the MPEG-4 Part 2 Advanced Simple Profile video codec, not a container format. Xvid video is commonly stored in an AVI file, usually with the .avi extension, and is supported by many older standalone DVD players, televisions, media boxes, and Windows applications.

Xvid generally produces smaller files than MPEG-2 at comparable visual quality and offers broader compatibility with legacy hardware than newer codecs such as H.264 or HEVC. It is less suitable for modern streaming workflows, where H.264 or H.265 usually provides better compression and software support.

How to actually convert M2V to Xvid

Using FFmpeg

FFmpeg is the most direct method because it can read an elementary M2V stream and encode Xvid through the libxvid encoder.

1. Install an FFmpeg build that includes libxvid.
2. Open a terminal in the folder containing the source file.
3. Run ffmpeg -i input.m2v -c:v libxvid -q:v 4 -an output.avi.

The -an option prevents FFmpeg from creating an empty or unintended audio stream. The -q:v 4 setting uses quality-based encoding; lower values improve quality and increase file size, while values around 3–6 are practical starting points. Test a short section before encoding a long recording.

To preserve a known frame rate explicitly, add a rate such as -r 25 or -r 30000/1001, but use the source rate shown by ffprobe rather than guessing. A typical PAL conversion is therefore ffmpeg -i input.m2v -c:v libxvid -q:v 4 -r 25 -an output.avi.

For a fixed file size or more predictable bitrate, use two-pass encoding:

1. ffmpeg -i input.m2v -c:v libxvid -b:v 1500k -pass 1 -an -f avi /dev/null
2. ffmpeg -i input.m2v -c:v libxvid -b:v 1500k -pass 2 -an output.avi

On Windows, replace /dev/null with NUL. The bitrate should be adjusted to the source resolution and desired size; 1,000–2,000 kbps is only a starting range for standard-definition video.

Using the built-in online converter

You can convert the file free on the 101convert.com website without installing software. Upload the M2V file, select Xvid or AVI/Xvid as the output when offered, start the conversion, and download the resulting file. Since M2V contains no audio, the downloaded file will also be silent unless the service provides a separate audio-track option.

Quality, compatibility, and limitations

Conversion from MPEG-2 to Xvid is lossy re-encoding. It cannot restore detail already discarded by the M2V encoder, and repeated conversions introduce additional blocking, ringing, and motion artifacts. Keep the original M2V as the archival master.

DVD-derived M2V is often interlaced. Preserve interlacing for playback on interlaced equipment, or deinterlace for computer and progressive displays with ffmpeg -i input.m2v -vf bwdif -c:v libxvid -q:v 4 -an output.avi. Deinterlacing changes the image and should not be applied automatically when the target device handles interlaced video correctly.

If the M2V came with a matching audio file, it must be encoded or copied separately and muxed into the AVI. For example, an MP3 audio track can be added with ffmpeg -i input.m2v -i audio.mp3 -c:v libxvid -q:v 4 -c:a libmp3lame -b:a 128k output.avi. AVI and older Xvid devices have limited support for modern audio codecs, so MP3 is usually safer than AAC.

Some FFmpeg packages omit libxvid. If ffmpeg -encoders does not list libxvid, install a build compiled with Xvid support or use a desktop encoder that exposes the installed Xvid codec. The output file should normally use .avi; .xvid is not a standard container extension and may confuse players.