You have 3 alternatives, according to me :
1)Check the media you're using. Which discs are they? Can you post ATIP info?
2)Roll back to ZS0G, by downloading the firmware from http://dhc014.rpc1.org
and flashing it to your drive.
3)Download the latest 48125W firmware from the same site, the .exe version, and apply flashfix to it. Then flash your drive with this firmware, making it a 48125W. Now try burning the same media and see.
Q6600@3.1Ghz | Asus P5Q-E | 4GB DDR2-800 | 8800GT | 4TB HDD | Viewsonic vx2025wm
Xonar DX | Pioneer DVR-212 | Pioneer 111L | Benq 1655