M2TS ASF
Free online converter

Convert M2TS to ASF

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M2TS to ASF converterFREE
Drop a .M2TS file here
or pick one - we convert it to .ASF and give you the file to download

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert M2TS to ASF

  1. Add your .M2TS file - drop it in the box above or click to browse.
  2. Convert it to .ASF in a few seconds.
  3. Download your new .ASF file.

What to expect

  • Video and audio are re-encoded into the ASF/Windows Media format, so the result is lossy relative to the M2TS source.
  • ASF is a proprietary Microsoft container; expect best support on Windows and VLC.
  • Surround audio and transport-stream metadata may be simplified or dropped in the move to ASF.

Frequently asked questions

Does M2TS to ASF reduce quality?
There is a lossy re-encode. ASF is Microsoft's container behind WMV/WMA, so the Blu-ray H.264/VC-1/MPEG-2 video and its audio are decoded and re-encoded, which loses some detail compared with the M2TS original.
Why convert M2TS to ASF?
ASF integrates smoothly with Windows Media Player and older Windows-centric tools. The conversion helps when a workflow or device specifically expects Windows Media containers rather than transport-stream M2TS files.
Where will the ASF file open?
On Windows it plays in Media Player by double-clicking. On macOS, Linux, Android, or iOS the free VLC player handles it, since ASF is a Microsoft format with limited native support elsewhere.
What can go wrong in this conversion?
Multichannel Dolby/DTS audio from Blu-ray may be simplified during re-encoding, and transport-stream metadata does not map cleanly to ASF. ASF is also a closed Microsoft format, so playback is best on Windows and VLC.
Learn about the formats: .M2TS · .ASF
Programs that convert M2TS: Adobe Premiere Pro · Free Studio · SUPER · WinX Video Converter