User-agent: msnbot 
Crawl-delay: 100

User-agent: msnbot-media
Crawl-delay: 100

User-agent: *
Disallow: /wp-admin/
Disallow: /track/
Disallow: /vid/
Disallow: /player/
Disallow: /podcast/
Disallow: /wp-content/plugins/
Disallow: /wp-content/themes/
Disallow: /videoplayer/
Disallow: /wp-includes/
Disallow: /copy/
Disallow: /dropbox/
Disallow: /graphics/
Disallow: /openx/
Disallow: /beta_backup/

Crawl-delay: 100