They have lots of them at our home at the low cost of CDs and DVDs. The problem is that when you are not rewritable you can not change them and they will soon become obsolete.
ISO Master is a free application that lets you create ISO images of CDs and DVDs and works with them after creating them.
We mean you can create a picture and use it, if you want to change it, you only have to select it, correct what you want and the program will restart the image.
If you are getting an ISO image and you want to know what it is before burning it, you can use it to test it and use the ISO master to determine whether it will grow or not.