Looking at The Black Cauldron, which I'm very familiar with, it's stretched and manually resizing to 4:3 looks right. I think the thing is, the rendered image i

Looking at The Black Cauldron, which I'm very familiar with, it's stretched and manually resizing to 4:3 looks right. I think the thing is, the rendered image isn't being stretched, but the problem is that it _should_ be: because the 320×200 resolution that this is emulating has non-square pixels on the 4:3 displays it was displayed on. Essentially everything today uses square ones. It'd need to be 320×240 to have square pixels on a 4:3 display. As to why the cursor in C&C is a perfect circle: I'm guessing it's because the C&C authors didn't adjust for non-square pixels. So it would've looked slightly-taller than a perfect circle on original hardware.