Games too big for cd

Hi,
I have copies of Star lancer, and several other games, all self booters, when i try to copy them, (with win oncd, as a multi sess), I get the image , but it wont burn, as it says too big to fit on a 80 min cd ?, any help guys ? :O)

[igottashit666]

works fine for me.
did you set max image size to 80 min?