First of all, welcome to the forum.
Vega22 is right, most people here recommend using a DVD-burner for PIE/PIF scanning, since they have had bad experiences with scanning using DVD-reading drives (as in: strange results that just could not be correct). Also, I don't really know what "najvec" means, but if it means "maximum" I would suggest scanning at a lower speed.
BTW, although an excellent burner, your 3500 isn't capable of PIE/PIF scanning. There are rumours however that this feature will be added to the 3500 soon. (as a matter of fact, most people here believe this feature will be added today!)