User-agent: Slurp
Disallow: /*.mp3$
Disallow: /*.mp4$
Disallow: /*.flv$
Disallow: /*.avi$
Crawl-delay: 4

User-agent: msnbot
Disallow: /*.mp3$
Disallow: /*.mp4$
Disallow: /*.flv$
Disallow: /*.avi$
Disallow: /*.pdf$