First, get a standard piece of plain printer paper paper. Place the CD on the center of the top edge of the page so that the top edge bisects the CD in half.
Step 2: Next Step
Now, fold the long sides of the paper over the CD
Step 3: Step 3
Fold the paper in half to form a reference crease.
Step 4: Step 4
Unfold the paper. Note the crease we made
Step 5: Step 5
Take bottom half and fold it over to the crease we made in the previous step.
Step 6: Step 6
Unfold the previous fold. Now, this part is tricky: fold back the ends and made two folds at 45 degrees so that it forms half of a box.
Step 7: Step 7
Take the part of the box that is standing up and flatten it by bringing it forward towards our reference fold while at the same time pulling out on the sides of the box. This will form two flaps that have 45 degree angle folds. The flaps should hang over the sides of cd holder.
Step 8: Step 8
This part is tricky too. Take those two hanging flaps and tuck them under. Don't tuck them under the whole piece of paper. The flaps will be like the meat in a sandwich: long piece of paper, flaps, bottom stub which was formed from the remaining part of the box-like structure we made earlier. See the picture for reference.
Step 9: Step 9
Move the CD into the bottom. The CD should fit into the stub
Step 10: Step 10
Fold the paper over the top of the CD
Step 11: Step 11
Make two small angular folds. These folds make it easier to tuck the top flap into the bottom stub.