Just upgraded to a new computer with Windows 10, haven't played NWN since Vista stopped being supported. When trying to install the Collector's Edition from CD, everything seems fine right up until it asks me to insert the play disc to complete the installation. Once I do, it acknowledges the disc, but then does nothing with it; if I click on anything, it just goes to the autorun, which tells me to insert the first disc to begin installation, and we're back to starting the install all over again. Is Windows 10 really this stupid? I mean, the discs are just fine, and I have never had this sort of problem before. It's exasperating! I believe I have the Diamond Edition on DVD around here somewhere, but is that going to be compatible wirth all of my saved game files, if it even works? Or do I have to buy this game a third time, from GoG, just to play?
It's probably the DRM on the disks causing issues.
The old disks, have disk based copy protection. That may be the source of the issues.
Starting with Vista, the OS got a lot more strict about what disk based DRM schemes could access, and thus broke some of them.
DRM is almost always just pain for legitimate customers, and nothing but entertainment for Crackers that pirate games.
This is why GOG is great. It frees us of those DRM pains.