Oooohhh... that's an inexpensive way to replace my disk! (Although these are downloads.) Here's the US site links:
SHIII "Standard" Edition
SH4 "Standard" Edition
... of which, the picture shows "Gold Edition", as does the order button...
Of interest to me is that they have a page with SH2, SH3, & SH4 on it. Conspicuously missing in a "Search" on their US site is SH5... ?? No "Destroyer Command" either...