I'm not seeing anything that says CDM... It is a type 5133.
I've taken the cover off and looked inside as well - where would this number be?
Also, while the cover was off, I watched it try to load a CD. I can see the CD try to spin - like it's stuck or something. I tried to turn it by hand, and it feels very tight, although I can turn it, it's too tight to spin freely.
I just purchased this and saw pictures of it working, but after shipping does not. It was packed in the original factory packing and then double-boxed.