Do It Yourself CD Changer

SuperDuG writes "This is a true homebrew solution to saving a few bucks when it comes to cd changers. And to make it even better the whole setup is controlled by none other than linux. Seems like a nice setup to do batch burns without user interaction. Source is provided if you wanted to build your own." Not sure if this is very practical, or even if it would be cheaper than buying a changer, but it sure looks cool.