It works with hard drives, CD/DVD burners, removable disks, flash drives, and so on. It can also detect disk partitions and treat them like an ordinary unit.
Besides blocking access to these units, DVD Device Lock can also hide them from the rest of the users or password-protect them.
It's a program that can be very useful for avoiding unwanted file transfers between units, or for ensuring nobody is transferring documents from your computer onto a flash drive without your knowledge. Also, it's extremely user friendly, and you barely have to do any configurations to start using it regularly.
30-day trial version.