I think an addition of what OS these rips have been tested on couldnt hurt....There are several games I could get working on Win98/2000 but not Xp service Pack2.....
Examples include Mortyr, Soldner (The registry setup issue), and a few others I cant remember right now. Nearly everything I have downloaded so works around the board, but there are a few exceptions.
You shouldn't download service pack2 if you are using Pc mostly for games. I use service pack 1 and everything works just fine even old Dos games. And remember that Xp is NT system. Service Pack 2 causing that Xp isn`t compatible with games before 2000 year.
XP has his probs with older games and this seems it makes things worse...damn MS..