protect

Which will be a good firewall which will protect Broadband connections?

My Friend is an author. He wish to sell a CD with PDF files with his book. Is there some way that the CD cannot be copied. All the PDF's have already been protected so that they cannot be printed. But still I need a way to protect the CD itself to prevent its copying. Is there any Paid/Free...

I have a query that whether ISP's have to pay someone according to Data usage :?: or they limit subscriber usage to protect their network congestion. :roll:

C'mon friends tell me which one u use tp protect uur PC

I got win xp with one of my partition as ntfs.I know to encrypt files but how do i password protect my files using ntfs