i use nero in windows too, and all i did was when i open the program close the 1st window that comes up that asks what you wana make, i just forget that all together, and go up to file, and select burn image, then go to where the slack isos are and double click the iso i wana burn and it does the rest, and they work perfect. i know you alredy got them made and 10 running and all but just for future reference, unless your gonna do it in slack from now on