Hi, Apparently, there are two ways to convert disk images in CDR format to ISO format: 1. Rename diskimage.cdr to diskimage.iso Or 2. hdiutil makehybrid -iso -joliet -o diskimage.iso diskimage.cdr The first method is really quick while the second method takes quite a long time. Do the two methods yield the same ISO file? In particular, I would like to convert a bootable CDR disk image to an ISO disk image. Thanks!