$ ffmpeg -i 80.orig  -sn -vf scale=576:324 -vcodec libx264 -b 1000k -acodec libfaac -ab 128k -ac 2 -f mp4 80.mp4
ffmpeg version 0.7.8, Copyright (c) 2000-2011 the FFmpeg developers
  built on Jan 19 2012 17:01:19 with gcc 4.3.4
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --disable-static --enable-gpl --enable-version3 --enable-postproc --enable-avfilter --disable-stripping --disable-debug --disable-doc --disable-network --disable-vaapi --disable-ffplay --disable-vdpau --enable-libmp3lame --enable-libvo-aacenc --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-libfaac --enable-nonfree --disable-indev=v4l --disable-indev=v4l2 --disable-indev=alsa --disable-indev=oss --disable-indev=jack --disable-outdev=alsa --disable-outdev=oss --enable-pthreads --enable-libdirac --enable-libspeex --enable-libvpx --disable-altivec --disable-avx --enable-hardcoded-tables
  libavutil    50. 43. 0 / 50. 43. 0
  libavcodec   52.123. 0 / 52.123. 0
  libavformat  52.111. 0 / 52.111. 0
  libavdevice  52.  5. 0 / 52.  5. 0
  libavfilter   1. 80. 0 /  1. 80. 0
  libswscale    0. 14. 1 /  0. 14. 1
  libpostproc  51.  2. 0 / 51.  2. 0

Seems stream 1 codec frame rate differs from container frame rate: 1200.00 (1200/1) -> 300.00 (300/1)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '80.orig':
  Metadata:
    major_brand     : M4VH
    minor_version   : 1
    compatible_brands: M4VHM4A mp42isom
    creation_time   : 2011-06-24 19:21:01
    encoder         : CoreMediaAuthoring 706, CoreMedia 484.20, i386
  Duration: 00:25:45.45, start: 0.000000, bitrate: 3675 kb/s
    Stream #0.0(und): Audio: aac, 44100 Hz, mono, s16, 219 kb/s
    Metadata:
      creation_time   : 2011-06-24 19:21:01
    Stream #0.1(und): Video: h264 (Main), yuv420p, 960x540 [PAR 1:1 DAR 16:9], 3443 kb/s, 29.96 fps, 300 tbr, 600 tbn, 1200 tbc
    Metadata:
      creation_time   : 2011-06-24 19:21:01
[buffer @ 0x2167600] w:960 h:540 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
[scale @ 0x2167680] w:960 h:540 fmt:yuv420p -> w:576 h:324 fmt:yuv420p flags:0x4
[libx264 @ 0x2169fb0] Default settings detected, using medium profile
[libx264 @ 0x2169fb0] using SAR=1/1
[libx264 @ 0x2169fb0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle Cache64
[libx264 @ 0x2169fb0] profile High, level 4.0
[libx264 @ 0x2169fb0] 264 - core 115 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=1000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '80.mp4':
  Metadata:
    major_brand     : M4VH
    minor_version   : 1
    compatible_brands: M4VHM4A mp42isom
    creation_time   : 2011-06-24 19:21:01
    encoder         : Lavf52.111.0
    Stream #0.0(und): Video: libx264, yuv420p, 576x324 [PAR 1:1 DAR 16:9], q=2-31, 1000 kb/s, 300 tbn, 300 tbc
    Metadata:
      creation_time   : 2011-06-24 19:21:01
    Stream #0.1(und): Audio: libfaac, 44100 Hz, 2 channels, s16, 128 kb/s
    Metadata:
      creation_time   : 2011-06-24 19:21:01
Stream mapping:
  Stream #0.1 -> #0.0
  Stream #0.0 -> #0.1
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