I bought a DVD burner from newegg recently. It's a BenQ, but I can't seem to figure out what model they sent me, because the model number is different from the website. It doesn't match any reviews either. The model number I got is a DW1620-201. I can find model numbers with DW1620, and DW1620PRO, but can't find mine. Does anyone else have this model number? And what type of burner is it?