User-agent: msnbot
Disallow: /*.ogg$
Disallow: /*.mp3$
Disallow: /2005/media/
Disallow: /2006/vortraege/audio
User-agent: googlebot
Disallow: /2005/media/
Disallow: /2006/vortraege/audio
User-agent: *
Disallow: /2005/media/