A couple questions about the SuperDrive in the new TiBooks: Who is the manufacturer? The specs don't quite match up to those of units from Toshiba, Pioneer, or Matsush*ta. Can the drive write and erase DVD-RWs? I know the desktop drives can even though Apple doesn't mention it, but I couldn't find any info on the notebook drive. I'm trying to decide whether it's worth $200 and a couple weeks to get the SuperDrive model, or if I should just go with the combo. Thanks in advance.