[Newton]

xbox has three types of dvdrom...
thompson can read all dvd+/-r, dvd-rw, cd-rw.
philips can read dvd+/-r, dvd-rw, cdrw and some cdr.
samsung can read dvd-r, dvd-rw, cd, cdrw, and some dvd+r...
if your going to backup xbox games use cdr-r, that way they'll play on all xbox.