Hi- yes, I used the search before posting. I have a Macbook Pro. When I insert a DVD into the Superdrive, it does not pick up that there is a disc and ejects after around a minute. The DVDs are brand new, no scratches. Imation DVD-R 8x, 4.7 GB. Any idea why they wouldn't work? The blank disc icon doesn't appear in the finder nor in disk utility.