In this video the tutor shows how to make an ISO image file on a Mac. He shows what the requirements are to get started. He points to the disk utility program from where he points to the option where we can open a disk image from a folder. Now he selects the folder to which he wants to save the image. Now he guides us through the rest of the settings on how to prepare the image. Now we end up with an image file which is in the .cdr format. Now he shows some commands on the terminal through which we can generate the ISO image of the required folder. This video tutorial guides you through a series of steps by which you can make an ISO image on your Mac.