Just like the title says. I've been collecting these games throughout a few years now, and recently made it my mission to actually complete them all. So far I've noticed there are different cover art versions for the PAL and NTSC regions (not including the font differences for each language) also Japan if i'm not mistaken. I am in EU, so it's quite hard to come across a US copy of a game. Also they are not included in the picture however recently I aquired the Platinum edition of Uncharted 2 to sit beside my Platinum Uncharted Drake's Fortune. I also  noticed the "essentials" series which are basically the same thing as a Platinum edition, I'll get Uncharted 1-3 versions for it (in the picture I already have 2) There are also a couple thousand versions for U2 because it got released around the time where PS3 went around a design change, so far there are 2 versions I came across (not including the GOTY), the NTSC release has the old PS3 logo like in Drake's Fortune, and ONLY the Asian release has the new logo without any other marking. This kinda confused me a bit ngl.  I'm not even gonna get into the Steelbook or collector/special editions since there are a LOT of them and they are a bir pricey. I've seen a thing called collector's edition it was a black cover for Uncharted 3, I also seen the special edition which looked about the same thing. I'm not sure on what differences they have. I'll provide images for what I'm talking about, I'd be happy if you guys could enlight me somehow, not sure if I was clear enough.

How many different Disc Cases are there?