Hello, Thank's for your concern.
I've traced the program, and there is no problem before calling NeroImportDataTrack(). In other word, all parameters and members of structures are normal condition.
So I guess this is not a problem during calling NeroCreateIsoTrackEx().
As a matter of course, using Nero Express, No error are raised.
Do you have any other idear?
Please help me. Thank you~!