I have a stupid question. Does my region depend on what I chose at installation or does it verify somehow differently?
Just curious which region I actually have and how heavily further downloads will depend on it:S
It doesn't change, it's included in the executables that are in your DVD, and it depends on where it is meant to be sold. I think there possibily is a difference for "region" 107, which is for digital download. Either way, it's only a speculative hypotesis.
As for your region, if your DVD comes from US, you have region 1, if it's from Europe (+ or -) it's 2, from East Asia or such, it should be 3.