Convert ASF to MOV

ASF to MOV converterFREE

Drop a .ASF file here

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How to convert ASF to MOV

ASF and MOV share no codecs - every conversion is a full re-encode, not a remux, so some quality loss is unavoidable.
DRM-protected ASF files (old Windows Media Store downloads) cannot be converted; the output will be blank or corrupt.
WMA audio is re-encoded to AAC; if the output has no audio, try forcing stereo with -ac 2 in FFmpeg or re-check the audio track selection in HandBrake.

Can I convert ASF to MOV on a Mac without extra software?

No - macOS has no built-in ASF/WMV decoder and QuickTime Player cannot open .asf files. Use our free converter above or install HandBrake (free).

Will the video quality change after conversion?

Yes, slightly - every transcode is a re-encode. At a standard H.264 quality setting the difference is usually imperceptible, but it is not lossless.

Which codec should I use for Final Cut Pro?

Apple ProRes gives the best editing quality; use FFmpeg with the prores_ks encoder or HandBrake's ProRes preset to keep full detail.

Why is my converted MOV missing audio?

The source likely uses WMA Pro or multi-channel WMA that was not mapped correctly; add -ac 2 to your FFmpeg command to force a stereo downmix.

Learn about the formats: .ASF · .MOV