Looking around the web for old pre databases[0] I stumbled upon this nice collection of preDBs dumps[1]. The one[2] that caught my interest was shared by the user called Islander to celebrate him quitting this world and starting a real life. Shared in October 2014, it was built across years 2005-2011, supposedly being the biggest database of nfos, sfvs and other metadata at 2011.

7.7GB RAR archive includes 452MB SQL dump of pre entries and over 5.3GB SQL dump of nfo files. After importing these dumps into MySQL database server (8.0.21 hosted in Docker) I discovered that something is off with nfo schema.