HELP : Insert a Writable DVD

Is your burner on the tested list?http://www.sonicfoundry.com/products/showproduct.asp?PID=810&FeatureID=6989&FeatureTL=6967Are you by chance formatting your blank media? DVD-A expects a fresh from the package blank disk that has had no formatting at all. I've tried formatted and unformatted discs, I still have the same issue