CANT COPY ON THE FLY WITH NERO.....??????

i am having problems making a duplicate copy of a movie,or any movie in fact using nero express,the same goes for alcohol 120%.
i have already ripped the movie onto a blank,but cant seem to copy a copy?
message error..not enough space on disc.
i am using fat32,but that doesnt matter as i am not using hardrive space.
i know it is better to copy from the hardrive to reduce the chance of errors,but that doesnt get me away from the fact that i cannot copy on the fly?
any help is appreciated.
with kind regards hursty.


sorry for posting this in another forum,didnt realise until too late that i posted it in wrong forum