Updated 16/11/2012Home » Video Glossary » M3U


An M3U file is a special type of metafile playlist that is used with MP3 files that have an .mp3 file extension. The .m3u file includes information about the location of the .m3u file on the computer and the properties of the file. An .m3u file is similar to the ASX playlist files. If an error message occurs on play then the MP3 files may have been moved or deleted.