Okay there were two versions of the Fate/stay night game, one was the 3 CD version, and the DVD version. The game was made right around the time when DVDs were a thing for most games as of late. so if you're wondering if the gaming be a 3 CD pack is legit, trust me it should be. Here's a link to prove it:http://vndb.org/r745
Also yes the Translation patch was meant to work for either the CD version, or the DVD version. As how it was setup, I think it was to detected which disk type you were using for the game install.
And personally I wasn't too sure as to post a reply on this topic since the title feels like a grey area discussion on warez you know, so I hope this was the answer you were looking for.
- Finding my way through this garden is rather unbearable, but if it is to keep the one I adore company I will endure it for her sake, and her sake alone.