A good article on the correct aspect ratio of DOS games
Posted: Sat Mar 19, 2016 9:32 am
Very nice article indeed. Although I think he kind of did not explain the main point of the first part clearly.
320x200 (or 640x400) is a 8:5 resolution, but it was filling the entire 4:3 CRT, because the pixels weren't square. But the key is this: the reason those games looked correct on 4:3 CRTs (and look incorrect on 8:5 LCDs), is because the graphics were drawn to correspond to non-square pixels in the first place.