Drill 7 holes around the outer part of the CD. Make sure that the holes are the same size as the diodes so they will fit in easily. The holes should all be an equal distance apart.
Step 3: Making the circuit
Put your diodes in the holes in the CD, and make sure the flat side is facing out. On the longer of the two wires of the diode, twist on a 100 ohm resistor. Bend the wires with the resistors towards the center of the CD, while the other wire will bend out to the side. Take a long, separate wire and strip it if needed. Twist it around the wires of the diodes that do not have a resistor. Make sure that wire does not touch the wire of the resistor. After connecting the wire to each diode, keep the extra wire hanging off. Do the same with all the resistors connected. Solder each connecting wires. Makes sure the wires of the inner and out circle do not touch each other and cover any wire with electrical tape. Tape another CD on top of the CD with the circuit on it.
Step 4: Connect USB to Circuit
First you will strip the red and black wires in the USB cord. The wires are very small and fragile so be careful. With the remaining wire of the inner and outer circles, you will connect the inner circle wire to the red and the outer circle wire to the black. You can twist the wires together and then solder the wires together for the red and black.