title: ffmpeg - Converting MOV files to MP4
body: <p>I have just installed ffmpeg and I am trying to encode all my uploaded videos to .mp4 file. Most of the users currently upload .mov and I want to convert every video to .mp4.</p>
  
  <p>I am running the command as follows:</p>
  
  <pre><code>ffmpeg -i movie.mov -vcodec copy -acodec cop out.mp4
  </code></pre>
  
  <p>But all I am getting is the following errors</p>
  
  <pre><code>ffmpeg version 0.8.5, Copyright (c) 2000-2011 the FFmpeg developers
    built on Aug 19 2012 11:38:20 with clang 3.1 (tags/Apple/clang-318.0.61)
    configuration: --enable-nonfree --enable-gpl --enable-version3 --enable-postproc --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libfaac --enable-libxvid --enable-libx264 --enable-libvpx --enable-hardcoded-tables --enable-shared --enable-pthreads --disable-indevs --cc=clang
    libavutil    51.  9. 1 / 51.  9. 1
    libavcodec   53.  7. 0 / 53.  7. 0
    libavformat  53.  4. 0 / 53.  4. 0
    libavdevice  53.  1. 1 / 53.  1. 1
    libavfilter   2. 23. 0 /  2. 23. 0
    libswscale    2.  0. 0 /  2.  0. 0
    libpostproc  51.  2. 0 / 51.  2. 0
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'movie.mov':
    Metadata:
      major_brand     : qt  
      minor_version   : 537199360
      compatible_brands: qt  
      creation_time   : 2012-03-28 07:13:20
    Duration: 00:00:26.23, start: 0.000000, bitrate: 12974 kb/s
      Stream #0.0(eng): Video: mjpeg, yuvj420p, 1280x720 [PAR 72:72 DAR 16:9], 12972 kb/s, 11.67 fps, 600 tbr, 600 tbn, 600 tbc
      Metadata:
        creation_time   : 2012-03-28 07:13:20
  File 'out.mp4' already exists. Overwrite ? [y/N] y
  Output #0, mp4, to 'out.mp4':
    Metadata:
      major_brand     : qt  
      minor_version   : 537199360
      compatible_brands: qt  
      creation_time   : 2012-03-28 07:13:20
      encoder         : Lavf53.4.0
      Stream #0.0(eng): Video: mjpeg, yuvj420p, 1280x720 [PAR 72:72 DAR 16:9], q=2-31, 12972 kb/s, 600 tbn, 600 tbc
      Metadata:
        creation_time   : 2012-03-28 07:13:20
  Stream mapping:
    Stream #0.0 -&gt; #0.0
  Press [q] to stop, [?] for help
  frame=  121 fps=  0 q=-1.0 size=   16408kB time=00:00:10.08 bitrate=13332.2kbitsframe=  306 fps=  0 q=-1.0 Lsize=   41543kB time=00:00:26.12 bitrate=13025.0kbits/s    
  video:41538kB audio:0kB global headers:0kB muxing overhead 0.012531%
  </code></pre>