I have a strange problem with my DVD-RW. So, it successfully reads all discs, but doesn't write data to discs. It erases discs (but windows can't format it) and burns just audio discs (by windows), but not data? Problem was on Windows Vista, now I reinstalled to Windows 7 but I have same a problem. I tryed many burning programs include Nero, all say succesfully saved but no data on the disc, it's empty. Please help me.