Saving as a Disc Image

Until iDVD 5, you needed to own a Mac with an Apple-supplied SuperDrive to burn iDVD projects. It wouldn't work with third-party external burners.

Now, that restriction is gone. However, there are still occasions when you want to save the project as a disc image, which effectively "burns" your project to the hard drive. For example, you may want to burn a DVD disc from that disc image on another computer, or mount the image on your desktop and preview the final project using the DVD Player application.

To save as a disc image:

1.	Instead of clicking the Burn button, choose Save As Disc Image from the File menu, or press Command-Shift-R (Figure 23.14). Figure 23.14. "Burn" a disc image to your hard drive.
2.	Choose a location on your hard disk to save the disc image; make sure you have plenty of free space.
3.	Click the Save button. iDVD follows the same procedure as when it burns a disc.

To burn a DVD disc from a disc image:

1.	Launch Disk Utility (located in Applications > Utilities).
2.	Drag the disc image from the Finder to the left-hand column (Figure 23.15); or, choose Open from the Images menu. Figure 23.15. Drag a disc image to Disk Utility to burn its contents to a DVD disc.
3.	Select the disc image in Disk Utility and click the Burn button.
4.	Insert a recordable disc (Figure 23.16). Figure 23.16. After clicking the Burn button in Disk Utility, insert a blank DVD disc to start burning.

To play a disc image using DVD Player:

1.	Double-click the disc image to mount the disc as if it were a physical DVD.
2.	Launch the DVD Player application.