In order to burn at higher speeds Samsung choose to implement Zone CLV technology. What this does is divide the CD in 3 Zones. The First zone is burned at 16x, then the drive speeds up to 20x to burn the second zone, and finally speeds up to 24x until the end of the CD. On the SW-224B the first zone ends at 2 min. from the lead in area, and the second zone ends at 12 min. During the zone transitions super-link is used to prevent you from making a coaster.