I would appreciate if somebody can answer the question. I know it does support dvd+r but i dont know if it supports dvd-r.
It does, but it has more problems with cheap DVD-R media than cheap DVD+R media. Make sure you always buy the best media. I use Taiyo Yuden DVD+R, but Taiyo Yuden DVD-R media is just as good. Also Verbatim is good.