I have searched online to find out where to get blank tall CD cases (Sega Saturn, Sega CD style) to no avail. The only option appears to be buying old sports games and taking those jewel cases. Well if that's the case then that would mean that they are in fact not being manufactured anywhere in the world. I find this hard to believe, I mean you can buy brand new parts for a 1950's Cadillac, but nobody is making these large jewel cases? If anyone is aware of any company doing this please message me. I just can't imagine that this market is being ignored especially since they are always broken it seems.
