This project came about after my beloved laptop's optical drive started to misbehave. The CD tray would repeatedly pop out whenever I gave my laptop a push or moved it about in any way. My diagnosis of the problem was that there must have been some loose connection which was tripping the eject switch whenever it was moved about. This became more and more irritating and finally, I decided to do something about it. I had only once used the optical drive in the 2 years of having my laptop so I thought I could probably do without it altogether.