Last night I needed to separate the audio from an .mp4 file and save it in an .mp3. I wanted to do this in media player so I googled save mp4 to mp3 in media player. Result number 2 was from ehow that should not seem strange because they rank for most searches. Read the page yourself: http://www.ehow.com/how_6707506_convert-mp3-windows-media-player.html The article says to rename the file as the other type. Like it actually says to open the file, erase the 4, and change it to a 3. As if this isn't incorrect enought, there's a different paragraph at the bottom that says even though you've converted it to an mp3 it will still play the videop. Terrible content.