./ffmpeg -f mpeg -i /dev/video0 out.mpg -vcodec copy
ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers
  built on Apr  9 2012 06:25:46 with gcc 4.5.3
  configuration:
  libavutil      51. 35.100 / 51. 35.100
  libavcodec     53. 61.100 / 53. 61.100
  libavformat    53. 32.100 / 53. 32.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 61.100 /  2. 61.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  6.100 /  0.  6.100
^CEstimating duration from bitrate, this may be inaccurate
/dev/video0: could not find codec parameters
Received signal 2: terminating.