$ avconv -v 9 -loglevel 99 -i VHS31.mp4 
avconv version 0.8-4:0.8-1ubuntu2, Copyright (c) 2000-2011 the Libav developers
  built on Feb  9 2012 08:03:03 with gcc 4.6.2
  configuration: --extra-version='4:0.8-1ubuntu2' --arch=amd64 --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-libfreetype --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
  avutil      configuration: --extra-version='4:0.8.0.1build1' --arch=amd64 --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-libfreetype --enable-vaapi --enable-libopenjpeg --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdirac --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid --enable-libvo-aacenc --enable-version3 --enable-libvo-amrwbenc --enable-version3 --enable-libdc1394 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
  avcodec     configuration: --extra-version='4:0.8.0.1build1' --arch=amd64 --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-libfreetype --enable-vaapi --enable-libopenjpeg --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdirac --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid --enable-libvo-aacenc --enable-version3 --enable-libvo-amrwbenc --enable-version3 --enable-libdc1394 --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
  libavutil    51. 21. 0 / 51. 21. 0
  libavcodec   53. 34. 0 / 53. 34. 0
  libavformat  53. 20. 0 / 53. 20. 0
  libavdevice  53.  2. 0 / 53.  2. 0
  libavfilter   2. 15. 0 /  2. 15. 0
  libswscale    2.  1. 0 /  2.  1. 0
  libpostproc  52.  0. 0 / 52.  0. 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x178e9c0] Probed with size=2048 and score=100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x178e9c0] ISO: File Type Major Brand: isom
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x178e9c0] multiple edit list entries, a/v desync might occur, patch welcome
[aac @ 0x1791560] err{or,}_recognition separate: 1; 1
[aac @ 0x1791560] err{or,}_recognition combined: 1; 1
[aac @ 0x1791560] Unsupported bit depth: 0
[h264 @ 0x17965a0] err{or,}_recognition separate: 1; 1
[h264 @ 0x17965a0] err{or,}_recognition combined: 1; 1
[h264 @ 0x17965a0] Unsupported bit depth: 0
[h264 @ 0x17965a0] Frame num gap 15 10
[h264 @ 0x17965a0] Frame num gap 15 11
[h264 @ 0x17965a0] Frame num gap 15 12
[h264 @ 0x17965a0] Frame num gap 15 13
[h264 @ 0x17965a0] reference picture missing during reorder
[h264 @ 0x17965a0] reference count overflow
[h264 @ 0x17965a0] decode_slice_header error
[h264 @ 0x17965a0] no picture
    Last message repeated 1 times
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x178e9c0] All info found
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'VHS31.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 0
    compatible_brands: mp41avc1qt  
    creation_time   : 2012-02-17 19:37:47
    encoder         : vlc 2.0.0 stream output
    encoder-eng     : vlc 2.0.0 stream output
  Duration: 00:00:06.19, start: 0.000000, bitrate: 2184 kb/s
    Stream #0.0(eng), 70, 1/44100: Audio: aac, 44100 Hz, stereo, s16, 128 kb/s
    Metadata:
      creation_time   : 2012-02-17 19:37:47
    Stream #0.1(eng), 41, 1/1001: Video: h264 (High), yuv420p, 768x576 [PAR 1:1 DAR 4:3], 1/50, 2048 kb/s, 24.68 fps, 25 tbr, 1001 tbn, 50 tbc
    Metadata:
      creation_time   : 2012-02-17 19:37:47
At least one output file must be specified