Problem burning KVCD with Nero

Have recently started to encounter problems with d/l KVCSD films, usually 1 click on the cue file and away we go, but recently instead of just burning the bin file film to cd Nero is burning the whole of the d/l files, when it opens prior to burning,at the top of the Nero window it reads write a a pre mastered image, is this correct? or do i need to alter something :confused