I’m real sorry that I haven’t responded earlier. I was called in to work abroad and they put me in a hotel where internet was 15 euro per block of 2 hours :Z
Anyway, I normally make a copy of my DVD’s to take them with me for just in case the originals get either lost or damaged (that still happens too often). And I was always opposed to burn ‘overspeed’ because of the quality loss. But after checking the thread with scans, I think burning Verbatims 2.4x @ 6x is perhaps even better than other brands at their certified 6x or 8x. Unfortunately I still have another 50 in stock.
I saw that there was an update for ImgBurn (now V22.214.171.124). And now it says that it’s doing an optimum power calibration or so … and surprise surprise … the first 2 were burned succesfully at 8x. However, after seing the speed drop to 7x every now and then, I stick to 6x anyway.
Could it be the burner / media combo?