I've already seen the serial # of the new drive to be sent and it's an older one than the one I sent in (I can tell by the number sequence). The power is not the problem because the drive light was on and the tray was trying to close. I could also see that one side seemed to be off it's hinge as there was more pull when moving the tray from side to side. The left side seemed to come out more than the right side.
I've written various departments at Lite-On expressing my disappointment.
Considering that the manufacturing cost of a new drive is probably less than the cost of refurbishing an old one (depending upon what country it's refurbished in), I don't know why a drive can't be replaced with a new one.
What also concerns me is when they have refurbished drives in stock. The 1633 only came out in late 2004, and already there's been a 1653, 1673, and a 1693.