When you want something to protect your CDs and DVDs but don't want to spend a lot of money, these paper sleeves are a nice way to go. I have a pack of 100 made by Memorex, and I keep some of my personal CDs and DVDs in them. They have a window which allows you to see any writing you may have on the CD/DVD for easy identification.
Let's face it, they are made of paper, so they aren't the strongest material, but they are suitable protection for CDs and DVDs where it doesn't matter if they are kept in something fancy. The paper sleeves also don't take up much room, so if storage is a problem for you, these sleeves will eliminate that headache.
I always have paper sleeves on hand, and I find myself using them a lot. If you are looking for something plain and simple to keep your CDs and DVDs in, and you have a storage problem, the paper sleeves are the way to go. They offer protection, are inexpensive, and don't take up a lot of room.