Free online DIVX to M2T converter

A video editor, HDV camcorder workflow, or broadcast tool may require an MPEG-2 transport stream instead of a DivX file. Converting creates an .m2t file, but it re-encodes the DivX video and cannot restore detail already lost during compression.

What the DIVX format is

DIVX files usually contain video encoded with the DivX implementation of MPEG-4 Part 2, also called MPEG-4 ASP. The extension is commonly associated with an AVI-style container and may contain MP3 audio. Older DivX Converter releases, DVD-ripping utilities, desktop video editors, and media-export tools created these files; they are also common in older downloaded or archived video collections.

Modern players may support the codec while ignoring the .divx extension, but some editors and hardware devices require the video and container to be converted first.

What the M2T format is

M2T is a file extension commonly used for an MPEG-2 Transport Stream containing MPEG-2 video and MPEG audio. HDV camcorders and HDV editing applications frequently use this format for recordings such as 720p or 1080i footage. Transport-stream packets make the format suitable for device recording and stream-oriented editing, but an M2T file is not automatically HDV-compliant: resolution, frame rate, interlacing, bitrate, and audio format must match the receiving device.

M2T is useful when an editor or capture workflow specifically accepts MPEG-2 transport streams. It is not a size-reduction format; MPEG-2 output is often larger than the original DivX file.

How to convert DIVX to M2T

FFmpeg is the most controllable desktop option. Install a current FFmpeg build, place the source in a working folder, and run:

ffmpeg -i input.divx -c:v mpeg2video -q:v 2 -c:a mp2 -b:a 384k -f mpegts output.m2t

This decodes the DivX stream, encodes MPEG-2 video, converts audio to MPEG-1 Layer II, and forces an MPEG transport-stream container. Replace input.divx and output.m2t with the actual filenames. Use a fixed bitrate when the destination specifies one:

ffmpeg -i input.divx -c:v mpeg2video -b:v 25M -maxrate 25M -minrate 25M -bufsize 1780k -c:a mp2 -b:a 384k -f mpegts output.m2t

For an HDV-style 1440×1080 interlaced target, use the receiving device's required frame rate and field order rather than copying these settings blindly. A typical 25-frame-per-second conversion is:

ffmpeg -i input.divx -vf scale=1440:1080,format=yuv422p -r 25 -flags +ilme+ildct -top 1 -c:v mpeg2video -b:v 25M -maxrate 25M -minrate 25M -bufsize 1780k -c:a mp2 -b:a 384k -ar 48000 -f mpegts output.m2t

Use -top 0 if the target requires bottom-field-first video. For a basic conversion without installing software, the file can be converted for free on the 101convert.com website; upload the DIVX file, select M2T, start the conversion, and download the result when processing finishes.

Quality and compatibility limits

• The conversion is lossy because DivX must be decoded and MPEG-2 must be encoded. Avoid repeated conversions and keep the original file.
• Do not force HD resolution merely to satisfy an extension. Upscaling an SD DivX source adds pixels but no detail and can increase encoding artifacts.
• Check the destination's exact requirements for MPEG-2 profile, frame rate, field order, transport-stream bitrate, audio codec, sample rate, and permitted resolution. A generic M2T file may play in software but fail in an HDV device.
• Variable frame rate, unusual audio tracks, damaged indexes, or unsupported DivX features can cause synchronization or decoding errors. Inspect the source with ffprobe input.divx before choosing output settings.