just be sure you download neo4k and NOT neohd. I got it all wrong until I discovered that little, but significant difference !

The updated NEO 4K build 256a zip file doesn't open properly for me with WinRAR or 7-Zip. It's giving the same "corrupted archive error" as earlier.

Weird, I use WinRAR and it works fine.

Works fine for me too using Winrar x64 3.91

Well, I'm using WinRAR x64 3.90. Let me upgrade it and see what happens. 7-zip is the newest version, though.

I downloaded it again, updated WinRAR to V3.93 and it worked fine, but the new download also worked okay with 7-zip. I'm wondering if it has something to do with downloading through Firefox (which has a lot of script blocking). This time I tried IE instead to access the Cineform website download link. Sorry for the false alarm.

Another upgrade question
 

I own Prospect 4K v4 and should be eligible for the Neo 4K v5 upgrade. The question is I've been on the fence about upgrading to Neo 3D. I'm not ready to do it yet and the free upgrade offer ends Monday (Aug 30). Only if I upgrade from Prospect 4k it saves me 1499 off the Neo3D price, but upgrading from Neo 4K saves only 999. Or will the fact I had Prospect 4K still entitle me to the larger discount if I upgrade to Neo 3D later?

Randall, after Aug 30 you are a Neo4K customer and the fact you had Prospect 4K is "forgotten".