User-agent: * 
Disallow: /download/

User-agent: Slurp
Disallow: /

User-agent: YahooSeeker
Disallow: /

User-agent: Yahoo-MMCrawler
Disallow: /

User-agent: Yahoo-MMAudVid
Disallow: /

User-agent: ia_archiver
Disallow: /

User-agent: gigabot
Disallow: /