Learn how to play AV1 files on Windows 11 using free codecs, VLC, or GPU updates for smooth high-quality playback.

^-- see above... i absolutely abhor quicktime, and i can't stand installing it, but i have a few funny clips, and some shorts and movie trailers that i can only find in .mov format (like the whalebomb ...

I cannot load the movie into iMovie or iTunes, and even VLC plays only the audio without video. The Google suggests that some others have also found problems with QT under Lion not playing .mov files ...

If you are unable to open an MP4 file on our media player, try changing the video format. There are many good video converters available on the internet that can help you convert your MP4 to MP3, AVI, ...