[quote=u-man]after that I ran those png files through an online vectoring tool which do pixel-perfect svg files from raster images, as you correctly presumed. To me, they look fairly good considering the shitty original material I had. But I agree that it has trillions of vectors and the size is big.
The whole point is that you're only supposed to auto-vectorize things that are amenable to being vectorized, like simple line drawings, or photos of LCD segments. You're not supposed to auto-vectorize a photograph of a game case, because it will just produce one "vector" per-pixel, which is as useless as a screen door on a submarine. They look "fairly good" because they're basically still the original photographs: There has been no simplification done. That needs to be done by hand, by an artist.