Somebody please help me

ok i have a matsushita ujda760 dvd-rw/r/cd-rw/r whatever and i can burn anything but dvds, i can read everything cds, dvds, but i cant read empty dvds. i dont know whats wrong will dvd-rw or dvd-r work because thats all i have tried. i havent tried dvd+r or dvd+rw. somone have a solution. if you could help me i will love u forver :flower:

READING blanks is useless,. there is nothing on it.

[B]Your drive is a combo drive, NO DVD BURNER![/B]

combo == DVD-ROM + CD-RW.