hmm. as i say, i'm not the person to really ask about the actual burning of iso files. i gather that the iso is a kind of container for the data which goes on the CD, and a cd burning program will kind of open up the iso file and put its contents on the cd, although we did have a guy on a few months ago who had inadvertently put the actual iso files on cds instead, which did not work.
the only thing i can do here, until somebody comes along who burns their own isos, like voidmain, or some other person, is to say to you, have a look at the site "
LinuxISO.org" and check out the instructions they have for burning isos onto cds, and also, if you really are convinced you cannot get them burnt properly, then try going to "
YourLinux.co.uk", they will burn you a copy of linux, and post it to you for next to cost price, anywhere in the world. There are bound to be similar services closer to your actual location, but they are the only ones i know about, i'm afraid.
hopefully someone will come along and help you out a bit better than this...