I RMA'd my OEM 1640 drive and received a RETAIL 1640 MADE IN CHINA....check this thread:
http://club.cdfreaks.com/showthread....=2#post1108284
My first drive had loud clunking noises which progressively got worse....I'm a happy camper with a my REPLACEMENT drive which is a RETAIL 1640 drive from Newegg.com. I'm

because Newegg.com doesn't have any RETAIL drives listed on their site......The retail drive has no clunking noises and it burns well....The OEM drives don't have the BENQ name on the front plate but the one they sent me does!!!! Go figure!!!!
