The case is excellent by itself, but really should not be sold under the assumption that it holds 500 discs. It does come with enough wallets and sleeves for 500, but it is physically impossible to place all the wallets into the ring-binders when they are full up with discs. I have managed to get 20 wallets inside each of my ring-binders, but it has been very tough to put the last two or three wallets in without allowing several of the others to fall out upon opening the rings. This means that I have stopped at 320 discs. I need to find different storage for my remaining discs (about 100 or so). At a push, I might be able to get another 2 wallets (16 discs) in the binders, but not much else.
If you need 300 or less, this is fine. If you need 400 or more, then this is selling under false pretenses.