When you get a CD or DVD to watch or listen to, it usually comes in a special case called an optical disc packaging. It's like a little house for your disc to live in and protect it from scratches, dust, and other things that can hurt it.
There are different types of packaging. The most common one is the jewel case, which looks like a small square box made of clear plastic. It has a cover on the front where you can see the name of the movie or music album, and some pictures and information. Inside, there's a tray that holds the disc in place. You have to press a little button or lever to take the disc out.
Other types of packaging are the digipak, which is like a book with cardboard covers and a plastic holder for the disc, or the slimline case, which is smaller and thinner than the jewel case and can hold only one disc.
Some optical discs come in special packaging called collector's editions that may have different shapes, colors, or materials, or include bonus content like posters, booklets, or stickers.
No matter what type of packaging your disc comes in, remember to treat it with care and keep it in its house when you're not using it, so it can live a long and happy life with you.