mjpeg mov criado pelo mais novo FFMPEG parece no Windows Media Player como vídeos com metade do tamanho

Question

Tenho uma nova versão do FFMPEG instalada e criei mov compactado com mjpeg. Parece bonito no player Afx, Premiere e QucikTime, mas parece um vídeo com metade do tamanho no Windows Media Player. Não existia esse problema na versão anterior do ffmpeg. Você tem alguma ideia de como resolver esse problema?

ffmpeg -i "content/test1080.mov" -sameq -vcodec mjpeg -qmin 1 -qmax 1 -y -s 640x360 -f mov "content/test Big Web.mov"
ffmpeg version 1.0 Copyright (c) 2000-2012 the FFmpeg developers
  built on Nov  5 2012 11:15:58 with gcc 4.4.6 (GCC) 20110731 (Red Hat 4.4.6-3)
  configuration: --enable-avfilter --enable-libmp3lame --disable-mmx --arch=x86_32 --enable-libfaac --enable-nonfree --enable-filter=movie --enable-avfilter --enable-libx264 --enable-gpl
  libavutil      51. 73.101 / 51. 73.101
  libavcodec     54. 59.100 / 54. 59.100
  libavformat    54. 29.104 / 54. 29.104
  libavdevice    54.  2.101 / 54.  2.101
  libavfilter     3. 17.100 /  3. 17.100
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'content/test1080.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    creation_time   : 2012-11-08 14:34:46
  Duration: 00:00:03.23, start: 0.000000, bitrate: 172538 kb/s
    Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj422p, 1920x1080 [SAR 72:72 DAR 16:9], 172517 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc
    Metadata:
      creation_time   : 2012-11-08 14:34:46
      handler_name    : Procedura obsługi skrótów danych Apple
      timecode        : 00:00:10;11
    Stream #0:1(eng): Data: none (tmcd / 0x64636D74)
    Metadata:
      creation_time   : 2012-11-08 14:34:58
      handler_name    : Procedura obsługi skrótów danych Apple
      timecode        : 00:00:10;11
Output #0, mov, to 'content/test Big Web.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 537199360
    compatible_brands: qt
    encoder         : Lavf54.29.104
    Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj422p, 640x360 [SAR 1:1 DAR 16:9], q=1-1, 200 kb/s, 30k tbn, 29.97 tbc
    Metadata:
      creation_time   : 2012-11-08 14:34:46
      handler_name    : Procedura obsługi skrótów danych Apple
      timecode        : 00:00:10;11
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg -> mjpeg)
Press [q] to stop, [?] for help
frame=   97 fps= 14 q=1.0 Lsize=   14282kB time=00:00:03.23 bitrate=36149.5kbits/s
video:14280kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.012432%