Problem with NERO SDK -7

I have a problem while writing DVD with the NERO SDK-7.
When i was adding a file a got this message:
“Sorry,your compilation cannot be written on this kind of disc.Please insert a disc of correct type or modify the settings of your compilation to make them compatible with the current disc
disc required for compilation CD-R/RW
disc type in recorder DVD+RW”
Now my question is cannot i write to a DVD using NeroCBUI given in NERO SDK 7.And if it is possible to write then what i should do.
Waiting for ur reply…

Thanks & Regards
Sanjeet kumar singh