Hi

Why can't my videos be played in Windows Media Player if the extension is in MP4?

Thank you very much

No idea ... try using a different player, like VLC.

Hi there. Thank you for reaching out and we're sorry for the trouble that this has caused. Kindly please try to use a different media player also as Labroides suggested in post #2. If the issue persists, you may try to play your video on a different computer for us to check if there's any changes. Please keep us posted. Thank you.