I've never tried the HD patch because Daytona Championship USA kinda scratched any itch I had for an updated version of the original game with modern graphics. The PS3 version of Daytona USA is the best looking home version of the original game I've got - HD, none of the pop up you get in Model 2 Emu and a (to my eye) ever so slightly smoother frame-rate. Apparently the 360 version is supposed to be a bit graphically superior due to some extra anti-alias-ey gubbins or something, but honestly, the PS3 version looks the absolute tits.