M&e

EN: M&e

Cinematografie

Stands for Music and Effects. After a mix a big production will have an M&E track made, which is used when the film is dubbed into other languages so that all the Music and Effects do not also have to be redone. An M&E track is only essential if you plan on dubbing your film into a different language.
The Pollio Folio - Glossary of Cinematography Terms