Hello, sorry for my ultrashort reply.
I have had several LG drives in the past and if I remember correctly, some of them (LG GH22NS, GCE-8523B, GSA-H12L) did rattle when I shook them.
They did work (and GCE-8523B does still work even after 8 years) flawlessly despite that, though.
Also, there were some other manufacturers' "rattling" drives that I've got my hands on - older LiteOn and Asus DVDR burners. I think it's a quite common "feature". :bigsmile: