How to Open MP4 Files in VirtualDub. VirtualDub is a free digital video application that you can use to make simple edits to footage. The program accepts digital video in the AVI, DIVX, MPG, MPV ...

Can't play MP4 on Windows? This post will show you how you can play & view MP4 video files using freeware like VLC Media Player & 5KPlayer.

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 ...