I've had my i/o magic burner since Aug of 2004. I never had a problem with it until about 3 weeks ago. When I burn a cd in nero, it starts out normal. Then the read buffer start going down to zero and then The light on my burner stop blinking red. Its come back on in about 5 sec later. It actually complete the burn process . But the disc is only good in the beginning, it starts messing up at the middle or the end. I went to the i/o magic website and spoke with one of the technician. They told me I should try and used TDK, MAXWELL and some other discs. That wasn't no help, I'm still having the same problem. By the way, Sometimes this happen and sometime it don't. I can burn a dvd r without experiencing this problem at all.