If you have identical files on your CD, you could use CDIMAGE to save space. What it does is put each identical file only once into the image and create some sort of link to the other occurences of that file. E.g. you have the file X, which is in folder A, B and C. Instead of writing it three times into the image, it writes it only once, and makes links from folder A, B and C to direkt to the physical location of the file in the image. PS: I hope that explanation is correct, otherwise someone please correct me..