Here is my problem, i don't know when this problem started, but my dvd burner can only read certain dvds, it'll read imation dvd+rw dvd, and Verbatim dvd+r dvd, but when i put in nexxtech dvd-r dvd, it won't read it. I can access the dvd manually by double clickin on the dvd drive in My Computer, but it won't let me burn it. It keeps saying put "insert a blank or rewriteable disc in to the NEC Dvd+RW drive." I'm pretty sure it's not a hardware problem since, it can reads those two dvd brand I mentioned at the top. Anyone knows how to fix this problem?