Check out our guide on how to convert MP4 files to AVI, whether you use Windows or Mac OS X.

I was recently sent some video clips in .mp4 file format and could not open them with Windows Media Player, which displayed a message saying the file was incomplete or corrupt. I tried various ...

When you export a Windows Live Movie to disk its default settings go out to an MP4 file. Windows Media Player on his computer does not play MP4 files.

How to Play MP4 Files in Media Player. An MP4 file is an MPEG-4 video encoding used for viewing movies. It is a file compression format that provides a wrapper for video, audio and text.

If you want to convert MP4 to HEVC / H.265 on your Windows PC, use these free MP4 to HEVC converter software and online tools.

Q: My sister sent to me four MP4 video files that she had converted from old family films. I was able to view them and enjoy them on my computer without issue, but when I tried to forward them to ...

1] Make sure the file format is supported Photos app supports all the major image and video formats. In case you are trying to open image and video formats like .mxf or some other that are ...

Windows XP users, for example, typically run the operating system using an administrator account. One bright spot, said eEye, was that because Winamp does not open MP4 files embedded in a Web site ...

How to Open MT2S Files. Unlike many other camcorders that save video clips in industry standard AVI, MP4 or MPEG format, newer Panasonic and Sony video camera record and store movie files in the ...