Hey inyu, all you need to do is start up the nero, click 'file' and burn image, then select the image (only one at a time) then you will get the options box with 3 tabs at the top, leave the first and second alone and click the third, click all the boxes, there should be 2 selectable (write, and finalize cd) then next to write speed choose slowest speed possible(the slower the less chance of error) then next to write method select 'track-at-once' (some people say disc at once but that Shiz dont work, i've tried that before and lost too many damn cds) the burn(write) and wait for the thing to stop burning and check it on your DC. If you get that "select" screen again chances are the iso sux because i've gotten some isos to work and some that dont using this method, so just look for another one.