User-agent: *
Disallow: /*jpg
Disallow: /*wp-gallery2
Disallow: /*gallery
Disallow: /*download
Disallow: /.gif$ 
Disallow: /.jpg$ 
Disallow: /.png$
Disallow: /.avi$ 
Disallow: /.mp3$ 
Disallow: /.zip$ 
#
User-agent: googlebot-image
Disallow: /