ffmpeg version 2.5.3 Copyright (c) 2000-2015 the FFmpeg developers
  built on Jan 19 2015 23:40:06 with Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.5.3 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-openssl --enable-nonfree --enable-vda
  libavutil      54. 15.100 / 54. 15.100
  libavcodec     56. 13.100 / 56. 13.100
  libavformat    56. 15.102 / 56. 15.102
  libavdevice    56.  3.100 / 56.  3.100
  libavfilter     5.  2.103 /  5.  2.103
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  3.100 / 53.  3.100
Input #0, matroska,webm, from 'The.Simpsons_S01_E01_Simpsons.Roasting.on.an.Open.Fire.mkv':
  Metadata:
    title           : Релиз - D2T/"Криволапый ювелир"
    encoder         : libebml v1.0.0 + libmatroska v1.0.0
    creation_time   : 2010-08-13 18:27:25
  Duration: 00:23:12.98, start: 0.000000, bitrate: 1047 kb/s
    Stream #0:0(eng): Video: h264 (High), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    Stream #0:1: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s (default)
[ac3 @ 0x7f824a81dc00] Estimating duration from bitrate, this may be inaccurate
Input #1, ac3, from 'The.Simpsons_S01_E01_Simpsons.Roasting.on.an.Open.Fire_EN.ac3':
  Duration: 00:23:12.96, start: 0.000000, bitrate: 448 kb/s
    Stream #1:0: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
[ac3 @ 0x7f824a85da00] Estimating duration from bitrate, this may be inaccurate
Input #2, ac3, from 'The.Simpsons_S01_E01_Simpsons.Roasting.on.an.Open.Fire_DC.ac3':
  Duration: 00:23:12.96, start: 0.000000, bitrate: 192 kb/s
    Stream #2:0: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
Input #3, microdvd, from 'The.Simpsons_S01_E01_Simpsons.Roasting.on.an.Open.Fire_EN.sub':
  Duration: N/A, bitrate: N/A
    Stream #3:0: Subtitle: microdvd
[matroska @ 0x7f824a867e00] Subtitle codec 1833195076 is not supported.
Output #0, matroska, to 'fixed_The.Simpsons_S01_E01_Simpsons.Roasting.on.an.Open.Fire.mkv':
  Metadata:
    title           : Релиз - D2T/"Криволапый ювелир"
    encoder         : Lavf56.15.102
    Stream #0:0(eng): Video: h264 (H264 / 0x34363248), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 23.98 fps, 1k tbn, 1k tbc (default)
    Stream #0:1(english): Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), 448 kb/s
    Stream #0:2(commentary): Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, 192 kb/s
    Stream #0:3: Subtitle: microdvd
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #1:0 -> #0:1 (copy)
  Stream #2:0 -> #0:2 (copy)
  Stream #3:0 -> #0:3 (copy)
Could not write header for output file #0 (incorrect codec parameters ?): Function not implemented