Basically it is a pseudo hard disk held in RAM. http://en.wikipedia.org/wiki/RAM_drive
You could create, say, a 12gb RAM disk - copy the DCS folder to it and run DCS from there.
Of course since this is in RAM, you would have to copy the DCS folder into the RAM disk again, after the computer reboots. Annoying, but the trade off in sheer speed of using RAM, over a Hard disk would be worth it IMO.
Nate