Yep slower speed sucessful burning. Plus there aren't much media for x40 burning. Plus doing some "exact copies"

someone won't go running and burning at x40.
Just needed to know if the integrated technology is the same in x32 burners as in thier x40 cousins.
Putting it simply I don't like the idea of sparing 80€ and lack some features x40 might have.
Btw anyone got an opinion on the Mitsumi 16Mb buffer burner ( I think it's CR-4809TE ). Is it SD2 compatible?