I flashed my OEM DW1620 to DW1620 retail version recently.I met a strange
question. I burned 2 Teon 8x DVD+R (ID:MCC 003)from the same Spindle.
the follwoing is the DVD+R burned by OEM driver(Firmware:G7C9) but scanned by DW1620 retail version(Firmware:B7P9).The result is acceptable.
check Second picture of the following Link: