Toshiba SD-M 1612/1712 & DVD+RW


its still not clear to me whether or not the 1612 and/or 1712 can read
dvd+r and dvd+rw without using a bitset utility before burning.
(I believe I read that they can read dvd+r(w) but you needed to change
the booktype from dvd+r to dvd-rom. Is that neccessary??)
Could someone tell me if its possible to read real dvd+r and with what firmware?

Thanks ???