Dell has replaced my bad Sony AW-Q160S with an Philips DVD8881 . The Sony won't read some of my original DVD's (video and data).
Here are 2 pictures from inside. It uses an MTK-Chip. On the backside of the board it shows "SUNG WEI"
Thanks for pics Zahni.
It would be even more interesting to see inside of Philips DVD8881 drive.