Windows Media Video File Format Family

Writable

video

file format family

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FFmpegOpen sourcereads and writes · LGPL-2.1-or-later / GPL-2.0-or-later
ExifToolOpen sourcereads · Artistic License / GNU General Public License, version 1.0 or later
HandBrakeOpen sourcereads · GNU General Public License, version 2.0
HuMo-genOpen sourcereads · GNU General Public License, version 3.0
Q117725Open sourcereads · GNU General Public License, version 2.0
Q3898244Open sourcereads · BSD licenses / GNU General Public License / GNU Lesser General Public License
VLC media playerOpen sourcereads · GNU Lesser General Public License, version 2.1 or later
Any Video Converterwrites
Creator NXT 2reads and writes
Movavi Video Editorreads and writes · proprietary license
MusicMaker MXreads and writes
Pinnacle Studio 17 Ultimatereads and writes
ScatterShow 1.1writes
VideoStudio Pro X5reads and writes
VideoStudio X7reads and writes
ACD FotoCanvas Litereads
ACDSeereads · proprietary license
ACDSee 5reads
Adobe After Effectsreads · proprietary license
Adobe Atmospherereads
Adobe Encorereads
Adobe Premiere Proreads · proprietary license
aTube Catcherreads
Camtasia Studio 3.0reads
Camtasia Studio 4.0reads
CineAssetreads
FakeTubereads · end-user license agreement
IrfanViewreads · freeware
MAXQDAreads · proprietary license
MoviePlusreads
NVivoreads · proprietary license
PhotoModelerreads · proprietary license
SpaceClaimreads
TMPGEncreads
Veblrreads
WebPlus Essentialsreads
YouTube Space Rioreads

To	With	Fidelity	Command and losses
FLAC (Free Lossless Audio Codec) 1.2.1	FFmpeg	Partial	`ffmpeg -i in.asf out.flac` Audio track only: the video is dropped.
Waveform Audio	FFmpeg	Partial	`ffmpeg -i in.asf out.wav` Audio track only: the video is dropped.
Matroska 1-4	FFmpeg	Lossy	`ffmpeg -i in.asf out.mkv` Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.
MPEG 1/2 Audio Layer 3	FFmpeg	Lossy	`ffmpeg -i in.asf out.mp3` Lossy audio only: the video is dropped.
MPEG-4 Part 14	FFmpeg	Lossy	`ffmpeg -i in.asf out.mp4` Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.
Ogg	FFmpeg	Lossy	`ffmpeg -i in.asf out.ogg` Lossy audio only: the video is dropped.
WebM	FFmpeg	Lossy	`ffmpeg -i in.asf out.webm` Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.

From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), Wikidata. Updated 2026-10-20.