[Karlos20945]

I downloaded the five zip files, and tried using WinRAR, but it kept coming up with an error and wouldn't unzip it. I tried 7zip and it's working away.
Am I correct in thinking that you only unzip the first zip file and you should be left with one file and one folder? If so, what's the sizes of both, just to make sure it's gone smoothly?

Also, does anyone know if the 1b.hex file changes each time you update the maps? I've still got a copy of the original file from the last time I updated and I was wondering if could use it again to generate another code, or if I'd have to obtain a fresh copy of the file?