Disk Images: Create Virtual Disk Images in OS X

Disk Images: Create Virtual Disk Images in OS X:

"If only there were a way to trick the game into thinking the disk was in the computer. Enter the Disk Utility, a little application that comes in the utilities folder of every Mac. All you have to do is pop your disk in, open Disk Utility, select your disk, and click New Image. Name the disk image and save it somewhere. Now all you have to do is open the disk image, and the disk will appear on your desktop, just like any normal disk. The applications will not know the difference between a virtual disk and the real thing."