I have a problem with DVD+RW media in my NEC 3500. Suddenly I can’t erase or burn them, all burning apps say it’s not a rewritable media, and cannot be burned. I also have another internal Matshita DVD-burner, same story there. So it’s not the NEC burner. I tried to uncheck “ignore media type” in Alcohol 120, with no luck. Tried to uninstall Alcohol, same thing. Any ideas?