E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
p   ffmpeg                          - multimedia player, server and encoder - Me
p   ffmpeg2theora                   - Theora video encoder using ffmpeg         
i   gstreamer0.10-ffmpeg            - FFmpeg plugin for GStreamer               
p   libxine1-ffmpeg                 - mpeg related plugins for libxine1         
p   moc-ffmpeg-plugin               - ncurses based console audio player - ffmpe