bobavenger1

I have a 2 GHz (Early 2009) MacBook 13" (model A1181) and was looking to replace the optical drive with a hard drive from...

I bit the bullet and bought one of the products, the Unibody Laptop Dual Drive. While not on the list of compatible Macbook models explicitly, this optical drive bay HDD enclosure worked in my 2 GHz (Early 2009) MacBook 13" (model A1181). I think the key was that this model uses a SATA optical drive, which is the same as the Unibody models. The only issue was that I needed to clip off two of the little plastic pieces to get it to fit into the optical bay.