Img_3147.m4v -
If you need the file to be more "universal" for editing software or older devices:
Surprisingly, you can often just change the extension from .m4v to .mp4 manually, and most players will still read it. IMG_3147.M4V
Use a tool like Handbrake to re-encode the video into a standard MP4 format. Why is my computer showing this name? If you need the file to be more