i check now and for 7mb dont fit on dvd9

I had not considered the setup, i try with DiskSliceSize=1700000000
sorry for the error
dvd9= 8.547.991.552 byte
dvd1= 8.554.862.592 byte
Edit:
i try with DiskSliceSize=1700000000 and now it fit on dvd9, dvd1 is 8.513.783.324 byte and dvd2 is 8.468.728.359 byte.