Guys, the Sony DRU810A is an OEM version of the Benq 1640, as per comparisions at CDRLabs and CDF. If the Benq 1640 isn't available where you live, pick up an 810A! Rashi claim it's available everywhere, so give it a shot. You can crossflash it with Benq 1640 FW as well, to use BSKB and QSuite 2.0 for overspeeding.