[matt] wrote me a couple weeks ago wondering how to build a robotic arm that can load and load/unload a CD or DVD from a drive. I told him about one built out of wood that I couldn’t find the link for ...

You might think that CD players and DVD players have had their run, but as it turns out, they are absolute goldmines for DIY projects. Pop one open and you'll find stepper motors, laser assemblies, ...