Windows Media Player in Windows 10 doesn’t natively support the .mp4 format. To play MP4 you need to download some Codecs or use one of these 3rd-party video or media players. These two packs Combined ...

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 ...

Here’s a little-known Internet secret: GIF files -- the preferred medium for sharing pithy animation loops across the web -- were never invented with this purpose in mind. Instead, the file format was ...