Well before I went to the store I called IO Magic and asked if there are any signs or clues outside the box if its a benq or Lite-On. I was told that they aren't any.
My benq was made at 04-04-2006.
I was also told by I/O Magic customer support that I could buy one from them and specify that I wanted a rebadged Dw 1655.
I was going to order online if I couldnt find a local store. They are (IDVD16DLS) available at several websites. I was scouting Geeks.com (Oceanside, California) and if they cant tell me then they should change name to notgeeky.com. They were cheap as well and its factory direct. So the drive is in a normal box.
Well I still on the lookout for another Dw1640 since I'm just so darn happy with the one I have. The only problems I have had with it has been dual layer media. But lately I have found out its the media and not the burner that resulted in poor burns(still playable). The last 2 spindles of verbatim has been like a dream.