MPEG4 Modifier CL v1.4.4a
http://www.moitah.net/

Arguments: [switches] source_path [dest_path]
  dest_path is only optional with --info or --frame-list

Switches:
  --unpack             Remove packed bitstream.
  --pack               Add packed bitstream.
  --par <val>          Set the pixel aspect ratio, <val> is:
                         square - Square Pixel Shape
                         43pal - 4:3 PAL Pixel Shape
                         43ntsc - 4:3 NTSC Pixel Shape
                         169pal - 16:9 PAL Pixel Shape
                         169ntsc - 16:9 NTSC Pixel Shape
                         custom <width:height> - Custom Pixel Shape
  --dar <val>          Set the display aspect ratio, <val> is:
                         custom <width:height> - Custom Display Shape
  --field-order <val>  Change the interlaced field order, <val> is:
                         tff - Top Field First
                         bff - Bottom Field First
  --info               Display detailed information about the video.
  --frame-list <path>  Write a text file containing each frame's type,
                       timestamp, and size to the location specified.
  --always-write       Write a new file even if the video format isn't being
                       changed (useful for converting OpenDML AVIs < 2GB to 
                       standard AVIs).
