Specifically, if you try to play the MP4 video on Windows Media Player, but the MP4 codec has not been implemented into this media player, then it may result in the MP4 playback failure on the player. Even if the video is of the same format, it will not be played properly because the video encoding is not supported. The reason can be that there is no sound on the screen or the screen cannot be opened at all. In most cases, when we open MP4 videos, we use the video player that comes with the system, and because the system's built-in player is not capable of encoding and decoding, it appears or not when playing some videos. In such a case, you had better turn off the hardware acceleration function. Generally speaking, enable the hardware acceleration on your computer can speed up the running of the media player, however sometimes it can block the MP4 video to be read completely by the media player. You can just open any video website, right-click the settings after playing, and remove the hook before enabling hardware acceleration. It is caused by the player and the incompatibility with your driver. This dynamic problem is not caused by the unreasonable design of the driver. Sometimes we play video only with sound, but the screen is green. If possible, you had better download the MP4 video from the Internet one more time. The reasons for MP4 file corruption are: The storage medium such as memory card when recording MP4 video is full Camera or device error while recording video Interruption when moving MP4 files from one storage drive to another MP4 header file is damaged due to unknown error CRC error or interruption during MP4 video file download Virus infection or storage drive contains bad sectors of MP4 video Changing the file format of MP4 video files, from one format to another also causes MP4 movie damage. What is the specific reason? For the detailed information, the possible reasons are described below. Many people think that it is a problem with the computer, and it is recommended to upgrade the computer system. Sometimes, when we are struggling to download videos from the Internet or copy them from other places, once we put them on our computer, they will not play properly. Part 1: Possible Reasons for MP4 No Video Problem Part 3: Convert MP4 Video to Media Player Format.Part 1: Possible Reasons for MP4 No Video Problem.
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