block robots from images

robot images

[gb_dev]

Is it typically a good idea to block robots from your images/movies dir?

User-agent: *
Disallow: /images/

User-agent: *
Disallow: /movies/

It would save bandwidth if images/movies try to be downloaded, but i'm not sure if they really do?...I guess they would if google has an image cache.

[Dijkgraaf]

It should be

User-agent: *
Disallow: /images/
Disallow: /movies/

Google search doesn't currently cache images and other media.