The Internet Archive's CHD Collection is the primary source for verified, Redump-compatible CHD files for European releases.
Many free file hosts (like MediaFire or Zippyshare clones) corrupt large CHD files. You might download a 400 MB file only to find that your emulator crashes on boot due to a mismatched hash. metal gear solid spain disc 1chd link
menu to "Eject" and then "Load" the second disc from the playlist. Why the Spanish Version? The Internet Archive's CHD Collection is the primary