OP has been updated with a link to the latest file!
That's not a mirror, that's the original source for the dats which now has been made public.
No look at the very end of the disclaimer.
Ah, yes, I had missed that there's a link to a mirror there. But that mirror exists for the sake of systems which are even newer than the Wii. The Wii dat is publicly available on redump.org now.
