How to save data in encrypted format? While I backup my data in a Zip drive for eg. I need to store it in ecrypted format with an encryption key. So every time I backup my data I wish to have different encryption keys. Is there any utility s/w?:)

I've never used it but This (http://www.dataencryption.ca/index.html) might apply.

:)

This link leads to Tape Drive encryption, but I want a free trial of an encryption s/w for HDD OR Zip Drive.:)

There's EasyCrypto (http://www.handybits.com/easycrypto.htm)