Hi Sach007,
Even if you are able to successfully block media downloads, there are many additional ways that users can bring media in and get it onto their computers. USB drives, downlaoded in password protected .zip files, etc. One main point of entry is via email. A friend (or the user, from home) can just email the song or movie clip to their work address.
Using a product like Symantec Mail Security for Microsoft Exchange can help to close off this email route into the company environment.
About filtering undesirable message content and attachments
Article: HOWTO61170 | Created: 2011-12-02 | Updated: 2011-12-02 |
Article URL http://www.symantec.com/docs/HOWTO61170
Hope this helps!
Mick