C:\MXF>c:\ffmpeg\bin\ffmpeg.exe -i source.mxf -map 0:5 -c copy smpte436m
ffmpeg version N-41074-g9c27f29 Copyright (c) 2000-2012 the FFmpeg developers
  built on May 27 2012 13:22:28 with gcc 4.6.3
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-ru
ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass
 --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable
-libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libope
njpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libth
eora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-
libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --e
nable-zlib
  libavutil      51. 55.100 / 51. 55.100
  libavcodec     54. 23.100 / 54. 23.100
  libavformat    54.  6.101 / 54.  6.101
  libavdevice    54.  0.100 / 54.  0.100
  libavfilter     2. 77.100 /  2. 77.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
[mxf @ 02edd400] could not resolve sub descriptor strong ref
[mxf @ 02edd400] source track 7: stream 5, no descriptor found
[mxf @ 02edd400] Stream #5: not enough frames to estimate rate; consider increas
ing probesize
Guessed Channel Layout for  Input Stream #0.1 : mono
Guessed Channel Layout for  Input Stream #0.2 : mono
Guessed Channel Layout for  Input Stream #0.3 : mono
Guessed Channel Layout for  Input Stream #0.4 : mono
Input #0, mxf, from 'source.mxf':
  Metadata:
    timecode        : 00:00:00;00
  Duration: 00:28:46.15, start: 0.000000, bitrate: 28754 kb/s
    Stream #0:0: Video: mpeg2video (Main), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9]
, 25000 kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn, 59.94 tbc
    Stream #0:1: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
    Stream #0:2: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
    Stream #0:3: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
    Stream #0:4: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
    Stream #0:5: Data: none
[NULL @ 030c81a0] Unable to find a suitable output format for 'smpte436m'
smpte436m: Invalid argument