Are there any places or online services that sell multi disc casings?

[Antiyonder]

I know that spare cases can be purchased at places like Best Buy, but are there any places if any that sell the kinds of cases similar to the 2 discs (Like the ones for Spider-Man, Spider-Man 2, X-Men 2) multidisc cases (Gargoyles Season 2 Volume 1, Avatar The Last Airbender Box Set, Justice League Unlimited Volume 1) or even the slim cases (Ren & Stimpy The Complete First And Second Season, Family Guy, Captain N The Game Master, Super Mario Bros 3)? I ask because I have some DVDs that stretch out over multiple volumes and would like a more compact storage that doesn't take up too much space.

[Swordfish_II]

http://www.american-digital.com/prod...ory.asp?c=1967

I haven't ordered from them personally, but I plan to at some point in the future to replace some Scanavo cases before they ruin any more of my DVDs.

[Michael24]

http://www.sleevetown.com/

I've only ordered some of their jewel cases, but I'm sure their DVD cases are just as good.