How to use original game on RCPS3 or how to dump them in order to use with RCPS3

thanks.
I copied a couple of games and I'm looking for files like 666001 to be merged in every folder.
In God of war collection 2 I have this folder with 3 files:
https://i.postimg.cc/GmSwj2bV/merge1.png
I merge them in this way and I deleted the 3 spilletd file: https://i.postimg.cc/v8Wv7NQd/Merge2.png

Is it correct? In any case, i have to open all the folders/subfolders in order to find if are present files like 666001. If I don't find any file like this, it means that there aren't splitted files, is that correct?

many thanks!

You can use search function, don't need to manually open every folder
If you used ps3merge it should be correct

perfect, many thanks!