Contents of this folder:
RomVault
Redump's latest DAT
IZArc

RomVault will allow you to verify your games with the latest DAT file from Redump

Unfortunately RomVault can't verify ROMs when they are compressed into .7z so you will have to convert them into a .zip. Install IZArc and highlight all the games you want to convert, right-click on them, and you will have an option to mass convert them in one shot with IZArc

Note: Nothing in this folder is necessary to play PS1 games. This is just for people that want to make sure everything is Redump verified






More info on what Redump is:
http://redump.org/

More info about RomVault:
https://www.romvault.com/

More info about IZArc:
https://www.izarc.org/