Forgive me if I don't sound very smart here. I was trying to use Bootcamp Assistant, and I was just following the steps, so I inserted a RW-DVD and let the mac do whatever it needed to, but I quit it halfway by accident (after writing stuff on the DVD disk), so I have all the stuff stuck on the DVD disk which I can't drag into the trash. And I tried erasing the contents with Disk Utility, but Disk Utility says: The disk in this drive can't be erased. I don't want to waste this perfectly fine DVD with a bunch of stuff that aren't working properly. Help, anyone?