To convert your files on your Mac system (macOS 10.7 to 10.15), a number of AVI to MP4 Mac tools are available. Here, the need for converting AVI to a more popular format as MP4 arises. 2.10 Convert MP4 to MP3 on Windows Media PlayerĪVI video format is in use for a long time, but still, the format faces compatibility issues with a number of players.