>>719935141
The director for FFTactics who is also overseeing the remaster said that back in the day they would make the JP version first and then simply overwrite the JP master version when making the English version and wouldn't do anything for preservation, and then overwrite the English version for the other languages and then overwrite and overwrite until the original files were long, long gone.
He said the only way they managed to make the Remaster was thanks to archival websites they stitched the code together.
https://www.pcgamer.com/games/final-fantasy/final-fantasy-tactics-remaster-devs-built-a-replacement-for-its-lost-source-code-from-fansite-downloads-director-says-i-do-want-to-thank-all-of-the-fans-for-all-of-their-help-in-keeping-that-information-archived/