I have the Pioneer DVR-112D in my Mac Pro Classic, and I'm a little irritated that it won't burn DL-DVDs at any higher than 2x. I recently did a crossflash with DVRFlash to update the firmware on the drive hoping that doing so would improve DL-DVD write speeds. No dice. SO... I am looking for a newer, better, faster optical drive. I know it needs to be ATA to work in my antique mac pro. Does it need to be some kind of mac specific drive? Can you give me any recommendations?