How to stop Google from indexing my SWF files?

[ichthyous]

Hi there, I would like to stop google and othe search engines from indexing my SWF files. I included a "disallow" in my robots.txt file for the directory where the files reside, but that doesn't seem to have changed anything. This is what my robots.txt looks like:

User-agent: *
Disallow: /assets/
Disallow: /Qstore/
Disallow: /js/
Disallow: /cgi-bin/

The swf files reside in the "assets" directory and continue to show up in Google's results. Any advice on how to stop this is appreciated...Thanks