Burning a BD-R with Nero 8

Hallo,

if I try to burn a BD-R the Nero User Dialog (DLG_WAITCD_MEDIA_INFO) is called with these values for the data parameter (NERO_DLG_WAITCD_MEDIA_INFO):

ndwmiLastDetectedMedia: 2097152 /* MEDIA_BD_R */
ndwmiLastDetectedMediaName: “(empty)”

A writeable BD-R disc is already inserted. So the NeroAPI doesn’t detect the BD-R disc. It works with a BD-RE disc. Any ideas ?
I use Nero 8.1.1.0b

Dietmar