WTF ? My burners not recognizing disk informations with Nero CD/DVD Speed!

I have a Plextor CD-R Premium V1.05 and a Pioneer DVD-RW DVR-108 V1.14. When I insert a CD (have not tested DVDs but think it will happen with them too) into any of these drives and go to Nero CD/DVD Speed, press Disk Info… nothing appears! Fields are just blank with a « - » in.

I thought my drives were defective when I downloaded the SmartBurn LiteOn utility to double check. Surprise! It showed me the informations I wanted (now I realize my Verbatim 48x are Taiyo Yudens :rolleyes: ). WTF ? May Nero’s utility be not compatible with my current configuration ?