What codec do I need to play MP4 files in Windows Media Player?
VLC is a pretty decent media player which can play MP4’s without a lot of tweaking. Still, when researching your question I found the following web site: http://www.afterdawn.com/guides/archive/how_to_play_mp4_files.cfm They state: The Easiest Method Download and install the VLC player. The VLC package already includes software to play MP4 files and supports decoding a lot of video and audio formats out of the box.. You can get VLC from: http://www.afterdawn.com/software/video_software/video_players/vlc.cfm. If you still want WMP to play your MP4’s you’ll have to download a few software packages and configure them. I’d go into detail, but why reinvent the wheel? The guide on afterdawn spells everything out. Sources:
