Write an article based on this "Download a media player from a trusted site. Go to "Properties. Right click to choose your media player. Click "Open With. Use editing software to play MP4 files."
Getting a different video player can be more useful or comfortable than installing a codec or decoder pack. Popular third party media players are VLC or XBMC. Make sure you know the location where you have downloaded your media player.  It's always recommended to use the bundled media playback software that ships along with your operating system; but, because they ship free with your operating system, they may not quite effectively play all the file formats. There are both free and paid software available. Some free softwares like VLC Media Player, Media Player Classic, etc. are some of the best and most widely used softwares. They support playback of nearly all the video and audio file formats. " Change your default media player by going into “Properties." Select the “General Tab,” then “Change,” then select your chosen media player and click “OK." If you are running the Windows OS, instead of double clicking on the MP4 file, you can also right click on the MP4 file to choose your third party media player.  This will bring up a drop down menu. " From the drop down menu, a new cascade window will open. A list of video players will come up with the third party media player that has been installed. Click on your desired media player and your MP4 file will open. More advanced users can use editing software like Camtasia to edit the video or audio. Professional DJ's can use auto play software like Virtual DJ Pro to load a list of multiple videos and the software will play them one by one.