(1) A handheld device that plays video in the MPEG-4 movie file format. See MP4 and portable video player. (2) Any media player software or Blu-ray/DVD player that supports the MP4 movie file format.

MP4 files can use different video and audio codecs, and if your media player doesn’t have the right codecs installed, it won’t be able to play the video. This is a common problem, especially ...

Some Windows 11/10 users using Windows Media Player, Xbox music, or Media Player app have reported having encountered error code 0xc00d36c4 when playing media files ...