Thank you very much, Zerocool! I did not know that scanning may be blocked for drives which support scanning at hardware level. I was wondering why the "Start" button for the DiskQuality test was inactive.
I have Nero Burning ROM 184.108.40.206 installed, and although I cold locate the for Nero Toolkit, there's no entry for Samsung or a value that looks like "blocked to enable scanning". Can you send me a screenshot? Or maybe someone who also uses Nero 6 can take a look in his registry?