Need help bitsetting Sony DW-D22a drive for burning Xbox360 backups

I have a Sony DW-D22a drive and I am trying to burn some backups of my Xbox 360 games, but I keep making coasters. I have read that you have to booktype the drive to DVD-ROM in order for the backups to burn correctly, however I am having trouble finding the write application or firmware to allow me to do so. Any help would be greatly appreciated.