# ffmpeg -an -i dscf6077.avi -r 30 -target dv film1.dv
FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al.
  configuration: --enable-gpl --enable-pp --enable-swscaler --enable-pthreads --enable-libvorbis --enable-libtheora --enable-libogg --enable-liba52 --enable-libdts --enable-libgsm --enable-dc1394 --disable-debug --enable-shared --prefix=/usr
  libavutil version: 1d.49.3.0
  libavcodec version: 1d.51.38.0
  libavformat version: 1d.51.10.0
  built on May 30 2007 13:38:04, gcc: 4.1.3 20070518 (prerelease) (Debian 4.1.2-8)
Input #0, avi, from 'dscf6077.avi':
  Duration: 00:00:18.0, start: 0.000000, bitrate: 4757 kb/s
  Stream #0.0: Video: mjpeg, yuvj422p, 320x240, 30.00 fps(r)
  Stream #0.1: Audio: pcm_u8, 16000 Hz, mono, 128 kb/s
Could not determine norm (PAL/NTSC/NTSC-Film) for target.
Please prefix target with "pal-", "ntsc-" or "film-",
or set a framerate with "-r xxx".