Mag Stock, Mag Track or Magnetic Film
Mag Stock, Mag Track or Magnetic Film – Mag track is a piece of film that is coated with an emulsion of magnetic oxide instead of silver halides. Basically, it is sound recording tape that is the same size as film, complete with perforations. For editing, all the sound, location sound and additional sound, is transferred to mag stock, where it is run on an editing machine in tandem with picture, one frame of picture equaling one frame of sound.
