How to convert M4V to MP4
- Add your .M4V file - drop it in the box above or click to browse.
- Convert it to .MP4 in a few seconds.
- Download your new .MP4 file.
What to expect
- Renaming and FFmpeg with
-c copyare lossless remux operations; HandBrake and VLC re-encode, which reduces quality to some degree even at high quality settings. - iTunes Store purchases carry Apple FairPlay DRM - renaming and converter tools will not work; these files can only be played in authorised Apple apps.
- If a converted file is rejected by a device, an AC-3 audio track is often the cause - re-encode audio to AAC with
ffmpeg -i input.m4v -c:v copy -c:a aac output.mp4.
Frequently asked questions
Can I just rename M4V to MP4?
Yes, for non-DRM files. M4V and MP4 share the same container, so renaming works instantly with no re-encoding or quality change. DRM-protected iTunes purchases do not respond to renaming.
How do I know if my M4V has DRM?
Open the file in VLC - if it plays normally, there is no DRM. If VLC refuses to play it or shows a blank screen, the file is DRM-protected.
Does converting M4V to MP4 reduce quality?
Not if you rename or use FFmpeg with
-c copy, which copies the encoded data without touching it. Tools that re-encode (HandBrake, VLC) reduce quality to some degree.Why does my M4V play in QuickTime but not in Premiere Pro?
Editing software cannot import DRM-protected files - only Apple-authorised apps can play them. If you exported the file yourself from iMovie or Final Cut Pro, rename it to
.mp4 and it will import normally.
