This ZIP file contains:

SDBR_v0.95.sfc, which is a ROM with the copier header (I know about the sfc extension).
SDBR_v0.95_unheadered.sfc, which is a ROM without the 512 byte copier header.

And I need to clarify something about where I got the ROM, because many people are confused about it:
It should be mentioned that while RetroCollect got the ROM from an anonymous person, it is confirmed to not be Dan Diebold, the owner of the SuperDisc.
After the "leak" (it wasn't public), I talked to Dan, he sent me the ROM and we released the ROM after that. That's basically it.