Hi, I have a DVD duplicator with 4 DVD drives but it does not have a USB port or any way to connect it to a computer. I would like to change the controller and install something that will allow me to connect all 4 DVD drives to a PC via a single USB cable so I can have access to all 4 DVD drives from the computer. I've been doing research on this and I can't seem to find a controller that will allow me to do this. Most of the ones I've found only allow for one drive to be seen by the computer, but I need all 4 DVD drives to be seen by the computer. Any suggestions, please advise. Thanks.