I do not know why my pc dvd burner suddenly does not write or burn and only reads? I tried everything I could from lense cleaning to other things and nothing worked. Troubleshooting shows no issue. So I has to use an external dvd burner connected to my pc. Searching online yield no solution. So has this happen to anyone or does anyone have solution or an idea whats wrong? P.S. I had replaced my old broken dvd burner 3 months ago. So its new. Thanks for any help.