Simple DVD question

So here is the deal. One of the plastic cases that holds the Simpson DVD cracked. (The plastic case that says "DVD" across it) Does anyone know how I can get one of the cases to replace the broken one?

In alt.tv.simpsons, on the "Simple DVD question" thread, Richard M. wrote:

If you're looking for a generic case to hold the DVD, then a CD case should fit nicely. After all, they're both the same size. You should be able to find case at computer stores, and probably some music places, as well.

If you're looking for another case like the one that originally came with the DVD, you may be out of luck. Retail stores aren't really equipped to separate the DVDs from their cases; after they gave or sold you a case, they'd be stuck with a set of DVDs and no place to put them.

If the return period hasn't expired, you may be able to exchange the DVD and case together for a new copy. Otherwise, you'll have to find someone with a defective DVD and a good case.

Benjamin Robinson wrote:

These days, many places also sell DVD cases as well -- they're better than CD cases, as DVD cases fit in with the other DVD cases that come with the DVDs. And if you can't find those, see if you can find empty cases for Playstation 2 or Xbox disks -- they're practically the same.