For a video showing how to fold letter-size or A4 paper into a sturdy CD/DVD envelop that protects its contents well, check the site below. The video shows the same method described on this blog.
If you use one-half or one-fourth of the paper, the result is perfect for seed packets. If you fold the paper along instead of across the length, you’ll get a nice envelope for letters (or money).
Oh, and if you want the world’s most beautiful origami CD/DVD envelope, look at this:
Happy new year!