NetBoot and Network Install images can be created with DVD source discs when using Mac OS X 10.2.4 or later. If you are creating an image on a client computer, be sure to copy the updated version of Network Image Utility from the server to the client computer.
When imaging DVD discs, Network Image Utility asks if you want to continue the imaging process with a second disk. Click Cancel when prompted for the second disk.
Important: If you click Continue when asked about the second disk, you must force quit Network Image Utility by pressing Command-Option-Escape. After a force quit, the imaging process is not complete. You should start over with a new image.