Your drive is an OEM Benq 1620.
You have two choices:
1- you upgrade to the latest 1620 OEM firmware G7V9
2- you crossflash your OEM drive into a true Benq drive using the tool ZEVIA just gave you and the latest retail Benq 1620 firmware B7W9
If you chose to crossflash (which is what any one here did!!!) you loose your warranty ... but your drive will be seen as a true Benq by your computer, and not as an ATAPI drive
Make your choice, I can't help your for that!