I'm also getting "Verify Failed: Reason Layouts Do Not Match." I was able to burn a batch of Memorex DVDs and then changed disc batch. I tried Memeorex and then HP. The burn doesn't appear to write to the disc in these batches. There's no etching on the surface. Any ideas. I've rebooted and so on, tried different speeds. I'm enclosing the log. Thanks!ImgBurn.log