I received my new Macbook Pro last week and it seems that every 4-5th time I insert a DVD it doesn't spin up and read the disk. If i eject the disk and insert it again it always works. I have tried different disks so it's not that. I am wondering is it me just jamming the thing in to fast or do you think this is a defective drive? Is this worth sending it back for? The machine is superb other than this (no bad pixels great fit/finish and keyboard/trackpad are pretty straight.) so I am a little resistant to return it but thought I would get some other opinions. Thoughts?