WTB: Emprex 4x dual format internal DVDRW

I want to buy an Emprex 4x dual format DVDRW drive. It must include both the white and black faceplates.
I've had bad luck with the two Emprex 8x DVDRW drives I have. Too bad I sold my 4x (which worked flawlessly for me) to get an 8x.
I've had bad luck with the two Emprex 8x DVDRW drives I have. Too bad I sold my 4x (which worked flawlessly for me) to get an 8x.