Two question I think every computer owner may want to know the answers to. 1) Would anyone know how long, through experience, an optical drive would last? I have been using mine frequently over the past couple of years and would like to know if I should be looking for a new one soon. And.. 2) Does anyone know if the quality of an aging optical drive's written data deteriorate over time or is the writer either working or not? IOW, will the DVDs and CDs I burned earlier have a higher quality burn?