I downloaded a couple of recordings from
http://www.linuxdj.com/audio/lad/contrib/zkm_meeting_2005/
The MuSE stream seems to have a big chunk of silence at the
end (from min 28 on).
There seems to be some problem with ardour stream beginning
around min 76.
there have been some problems with the encoding machines.
Partly the talks are not complete, at least in the videos.
Best regards
ce