CDlock

From SmartLine:

CDLock lets you set up rules for the local computer, defining when any removable disks which support auto-eject feature can be used and by whom. You can control access to any removable disks, such as CD-ROMs, optical disks, or anything else depending on the time of day and day of week. CDLock even allows controlling access to the Audio CDs so you can build secure but user-friendly environment on every workstation in the network. CDLock enhances access control for Windows users and helps you to control the removable disks usage. It can protect your computers against viruses, trojans and other undesirable programs which removable disks may contain