MARC21       007m'04  Motion picture presentation format
     Values: 
              a   Standard sound aperture (reduced frame)
              b   Nonanamorphic (wide-screen)
              c   3D
              d   Anamorphic (wide-screen)
              e   Other wide-screen format
              f   Standard silent aperture (full frame)
              n   Not applicable [obs.]
              u   Unknown
              z   Other