Read Only USB Memory Stick

Hi, I currently burn presentations to memory sticks using a cmd line script, which copies files onto the sticks one at a time. What I'd like to do is then set each memory stick to read only, so files cannot be deleted, amended or any other files added to the USB. I have come across a program to do this on USB sticks with an SMI controller / chipset, but this only does one stick at a time - [login to view URL] I'd like someone to create a program, which can be ran from a cmd line, to set any number of USB memory sticks to read only - I'd like this to work on any memory stick if possible, not just those with SMI controllers. I DO NOT require the USB to partitioned into two sectors etc, as I want the whole of the memory stick to be write protected. Thanks, Oli