So you need a Compact Disc (CD) or Digital Versatile Disc (DVD) case in a hurry? Have nothing but an A4 sheet of paper, the disc (or 2), a ruler and a pen? Well you're in luck. Don't scour the house or office to look for your missing case, you might never find it and be late. So get out your ruler a pen and follow these instructions:

Step 1. Get the ruler and rule on the short horizontal sides of the A4 sheet a line that is 1 inch (2.5cm) from the edge. Fold and unfold along these lines with the aid of the ruler.

Step 2. On the long sides rule a line that's 1.5 inches (4cm) from the edge. Fold and unfold along these lines with the aid of the ruler.

Step 3. Fold and unfold the sheet exactly in half. This should be 5.8 inches (15cm).

Step 4. Place the CD in the space between the middle fold
and the bottom fold and then fold up in the following order: Bottom, sides, and in half over the top of the CD, covering it. The top fold should seal the emergency case.

Some possibly useful links:

How to buy and sell used CD's and DVD's

DVD Video

Origami