I tried to burn a DVD for a first time on my MacBookPro and nothing is happening. I tried to burn CD and it works. I can play a DVD for ex. but I can't write? I used Verbatim DVD-R Advanced Azo +. The problem is when I clic to burn the Toast window shows preparing and after that nothing is happening, like everythings just stops. I have to restart my MBP to eject the DVD. When I put it again, it shows that is empty? Do you have any clue? I used Toast 8 Titanium. Thanks in advance.