Hooray, maybe it was just a dust particle on the DVD drive's sensor ruining the first run, this one so far is smooth as silk. I installed all Asus DVD driver stuff, plus nVidia 314.22. The hardware manager purrs like a cat.
Hope it stays like this! Will be on travels from tomorrow on, for 3 days, maybe 4. Cannot complete all stuff tomorrow.
Thanks, dragoin, but you understand that I hope your suspicions turns out to be wrong...