I haven't tried yet, mainly because I can't! I don't know how to just modify a CD ISO were I just insert lots of empty space (a bunch of 0's) between the boot loader and the Knoppix DATA until it's expanded to a 4.7 DVD ISO out of that and then burn it to a DVD disc. Since most of it is empty space, I'm very sure it will compress nicely into a 700mb .zip file.