Hi Shirley From my experience you cannot actually author the DVD on a mac not equipped with an internal DVD burner. What iDVD 4 does allow is for you to set up the DVD interface on the non internal machine you then have to move the project to a machine with an internal burner for any encoding to happen. This is a pretty big step forward since it allows you to use a powerbook to show a preview of your project and make changes on the powerbook all without taking time to make a DVD. Then when you and anybody you are collaborating with is happy with the interface you move the project to a computer that will encode and burn the disk. Gerhard On Feb 8, 2004, at 12:30 PM, ShirleyK wrote: > No, there is no such issue with CD-R drives. This is strictly Apple's > decision to make their iDVD software look for an internal drive and > refuse to burn a DVD if it doesn't find an internal drive. Prior to > iLife '04, it wouldn't even let you author a DVD. Now you can author > on one machine and move the project to another machine that has an > internal DVD burner to complete the final step. If you were unable to > burn a CD using an external drive, it's another issue. > > Shirley >