Try burning CDs and DVDs at a low speed. If you use the maximum speed that your drive allegedly handles, you have a higher chance of problems. Some applications don't allow you to adjust the speed, so either you are out of luck or you have to find a different application that allows you to select a slower write speed (like Finder). I'm not sure how much of a difference this will make. I had one write error on a DVD recently, but I don't burn too much so I don't know if it will be a recurring problem.