burn InstaDMG! images to DL DVDs?

Hello, I am a newbie to InstaDMG. I have built an image and am using DeployStudio for deploying it (Mac OS X Server 10.6). However, we have some folks in remote offices who will not have access to a DeployStudio/OS X Server on the network. Is it possible to burn the InstaDMG image I've built onto a DL DVD so they can install it this way? I have been trying to burn the image on a DL DVD but DiskUtil complains there is not enough space on the DL DVD to burn the image.. any help is very much appreciated. Maria