compilation cannot be written on this kind of disc..

i got a problem and was wondering if anyone in here can help me with. i got 2 GC games that i cannot burn to disc (naruto2 and donkey konga2 ). after using gcfix to fixed the iso and tried burning the iso to the disc with nero 6, i got this error message:
"sorry, your compilation cannot be written on this kind of disc. please insert a disc of the correct type or modify the setting of your compilation to make it compatible with the disc"
anyone knows why this error message occur and how to fix it?
any help is greatly appreciatd..
thnx in advance..

smoke

 

sorry.. forgot to mention..
the disc that i've been using is ridata..mini dvd-r..
all other games work.. except for these two..
again.
thnx..
smoke