archange@Methrilla:~$ ffmpeg -i /home/archange/Desktop/truthhappens.ogg -v -vcodec h264 /home/archange/Desktop/test.mkv
FFmpeg version SVN-r6197, Copyright (c) 2000-2004 Fabrice Bellard
  configuration:  --enable-mp3lame --enable-x264 --enable-xvid --enable-libogg --enable-vorbis --enable-gpl
  libavutil version: 49.0.0
  libavcodec version: 51.13.0
  libavformat version: 50.5.0
  built on Sep  8 2006 18:57:14, gcc: 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
[theora @ 0x83bfad8]Theora bitstream version 30200
[theora @ 0x83bfad8]584 bits left in packet 81
[theora @ 0x83bfad8]7 bits left in packet 82
Input #0, ogg, from '/home/archange/Desktop/truthhappens.ogg':
  Duration: 00:03:39.0, start: 0.567233, bitrate: 299 kb/s
  Stream #0.0: Video: theora, yuv420p, 320x240, 29.97 fps(r)
  Stream #0.1: Audio: vorbis, 44100 Hz, stereo, 79 kb/s
Unable for find a suitable output format for 'h264'