There are many ways to make a CD Factory. Here is one way: 1. * Enter Stage Builder, and ensure the disponibility of the conveyor belt stage piece (it comes with Edit Parts B, which are unlocked by building five stages). 2. * Build a small stage and two large sized conveyor belts down starting from the bottom right side, and the second connected to it in the middle right. Build a medium-sized block at the bottom left of the map so that the bottom is completely covered. 3. * Place a large conveyor belt two spaces above the medium-sized block, and reverse its direction. Test out the level, and make sure that all of the conveyor belts lead inward, and don't push characters off the stage.