No ffmpeg?, howto convert/extract audio from webmd ,write to ogg?

[Tony Baldwin <tonybaldwin@gmx.com>]

There seems to be no plain ffmpeg in the jessie repos.

........Terminal output quote........

$ aptitude search ffmpeg
p   cmus-plugin-ffmpeg 
      - lightweight ncurses audio player (FFmpeg plugin) 

p   ffmpeg2theora 
      - Theora video encoder using ffmpeg 

p   ffmpegthumbnailer 
      - fast and lightweight video thumbnailer 

p   ffmpegthumbnailer-dbg 
      - debugging informations for ffmpegthumbnailer 

p   ffmpegthumbs 
      - video thumbnail generator using ffmpeg 

p   gmerlin-encoders-ffmpeg 
      - ffmpeg encoders for Gmerlin 

p   libffmpegthumbnailer-dev 
      - development files for ffmpegthumbnailer 

p   libffmpegthumbnailer4 
      - shared library for ffmpegthumbnailer 

p   libtaoframework-ffmpeg-cil-dev 
      - Tao CLI binding for FFmpeg - development files 

p   libtaoframework-ffmpeg0.4-cil 
      - Tao CLI binding for FFmpeg 

p   libxine2-ffmpeg 
      - MPEG-related plugins for libxine2


............................

Perhaps I should just grab the upstream pkg ,directly and 
compile/install however necessary?

I have a .webmd file from which I'd like to extract audio and write it 
to an .ogg or .flac file, but I'm a little lost without my old friend 
.ffmpeg

Any suggestions will be appreciated.
I did the requisite googling, and all I find for what I want to do are 
instructions for how to do it in Ubuntu with ffmpeg.


--
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all tony, all the time