You DO NOT need to stick your NAV DVD in to your Mac. Make the pictures and have them set to 500 x 240 pixels. Save them as JPG files. Create a folder called PICTURES on your Desktop (Apple + Shift + N) then save the flattened JPG images into the folder PICTURES on your desktop. If you have Toast open it and stick in a blank cd. With Toast click DATA CD then make sure that you have the MAC/PC compatiability boxed checked. Drag the Pictures Folder from your desktop into Toast. Click BURN (Red button in Lower Right Corner) wait until it is done. Eject disc, take it to your car and insert into th