I found a site that has a lot of info on Lite-On DVDRW firmware and pateched firmware to flash your Lite-On DVDRW to Dual Layer. I just flashed my 1613S single layer to 1633 dual layer. Now all I need is a dual layer disk to test it out..........

BTW, the drive seems to work fine after the flashing so far...........
http://codeguys.rpc1.org/firmwares.html