Perhaps you misread my post, or else I'm misreading your reply. I don't have NXT, I'm exploring the possibility of buying it because my current Easy Media Creator 9 is not on the MS Win 7 Compatibility list.
ECM 9 on my old computer, in spite of sporatic stability issues (system crashes, wasting a lot of CDs and DVDs due to incomplete copying, etc.) overall I was happy with it. There were issues but they were sporadic in nature, as opposed to chronic.
So I gather from your response that you have had no issues whatsoever with NXT or any previous releases -- that is no system crashes, so system performance slow down, nothing. Everything works fine, yes?
Thanks for your help Jim.