ffmpeg -v verbose -i "guide-out.0.mkv"  -ac 2 -c:a wmav2   -strict -2 -y "guide-out.0.id1.wma"

ffmpeg version 2.1.5 Copyright (c) 2000-2014 the FFmpeg developers
  built on Jul  8 2014 20:44:17 with gcc 4.8.3 (GCC) 20140624 (Red Hat 4.8.3-1)
  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-frei0r --enable-gnutls --enable-libass --enable-libcdio --enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopencv --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
  libavutil      52. 48.101 / 52. 48.101
  libavcodec     55. 39.101 / 55. 39.101
  libavformat    55. 19.104 / 55. 19.104
  libavdevice    55.  5.100 / 55.  5.100
  libavfilter     3. 90.100 /  3. 90.100
  libavresample   1.  1.  0 /  1.  1.  0
  libswscale      2.  5.101 /  2.  5.101
  libswresample   0. 17.104 /  0. 17.104
  libpostproc    52.  3.100 / 52.  3.100
Input #0, matroska,webm, from 'guide-out.0.mkv':
  Metadata:
    COMPOSER        : Encoded by VHS (Video Handler Script 1.0.0), using ffmpeg 2.1.5
    DESCRIPTION     : Encoded by VHS (Video Handler Script 1.0.0), using ffmpeg 2.1.5
    ENCODER         : Lavf55.19.104
  Duration: 00:46:12.72, start: 0.155000, bitrate: 481 kb/s
    Stream #0:0: Video: h264 (High), yuv420p, 1920x1080, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
    Stream #0:1: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
[graph 0 input from stream 0:0 @ 0xe48360] w:1920 h:1080 pixfmt:yuv420p tb:1/1000 fr:25/1 sar:1/1 sws_param:flags=2
[graph 1 input from stream 0:1 @ 0xe3ef40] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x3
Output #0, asf, to 'guide-out.0.id1.wma':
  Metadata:
    description     : Encoded by VHS (Video Handler Script 1.0.0), using ffmpeg 2.1.5
    WM/Composer     : Encoded by VHS (Video Handler Script 1.0.0), using ffmpeg 2.1.5
    WM/EncodingSettings: Lavf55.19.104
    Stream #0:0: Video: msmpeg4v3 (msmpeg4) (MP43 / 0x3334504D), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 1k tbn, 25 tbc (default)
    Stream #0:1: Audio: wmav2 (a[1][0][0] / 0x0161), 48000 Hz, stereo, fltp, 128 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (h264 -> msmpeg4)
  Stream #0:1 -> #0:1 (ac3 -> wmav2)
Press [q] to stop, [?] for help
*** 2 dup!
frame= 1284 fps=111 q=31.0 Lsize=    6039kB time=00:00:51.58 bitrate= 959.0kbits/s dup=2 drop=0
video:4993kB audio:806kB subtitle:0 global headers:0kB muxing overhead 4.144696%