After the original BenQ 16x successful burn thread, time to start one for LG. Since LG GSA-4163B is a little faster than DW1620, I believe 5:30 is that much to ask for.
If possible, post scan results when scanned in PX-712/716, DW1600/1610/1620, SOHW-451/812/832/851/1213/1613/1633/1653/1673, or other drives capable of scanning PIE/PIF rates.
Keep in mind only DVD+R and DVD-R media rated at 16x are allowed for 16x burning in GSA-4163B regardless of firmware version. DVD-R media are usually about 10 seconds faster than DVD+R media in GSA-4163/5163's P-CAV 16x.