These days Autorun based malwares rules over all threats in USB , DVD and in DVDs, CD and DVDs cant be immunized as they are readonly devices but USB s Can be immunized well
USB immunizer is a solution from bitdefender for this growing issue, This utility immunize the USB or SD Card against infections based autorun malware, after immunization when it is plugged to an infected computer it will create autorun.inf.
The Immunize Computer slider allows you to toggle the autorun feature On or Off for any removable media (except for CD/DVD-ROM devices). If you accidentally plug in an infected USB drive that has not been immunized, the computer will not auto-execute the piece of malware located on the USB storage device.
Find it here : http://labs.bitdefender.com/?page_id=108