NERO_CD_INFO.ncdiTotalCapacity have 0 value!

Hello, everyone?

I have made my own CD/DVD burning program using Nero-API, and it is perfectly working with LG drive.
But, a problem is raised when I try to run the program with Samsung drive :a :
Total capacity of CD-R is returned by 0. :confused:
At result of debuging, ncdiTotalCapacity got a value 0. In contrast to this, ncdiFreeCapacityInBlocks got a correct value. What can I do in this situation?