Need help repack my games, im new to this

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Hello I'm completely new to this and it's been 2 days i'm trying to understand but I don't really understand,or where to start if I need to compress the game first or make the installer first ? this is really confusing and what to edit to make it an final ISO file with the setup.exe + Data1b-01.bin and Data1b-02.bin,Records.ini, autoruns.ini ?

I managed to figure out how DiskSpan GUI worked with method of compressions etc, and i'm getting twos file Data1b-01.bin and Data1b-02.bin in Conversion_Output folder.

But now for the installer I installed inno setup and got an installer from here which is compatible with DSG but where do I put Data1b-01.bin and Data1b-02.bin and setup.dll to make the setup.exe Final, if I tried to compile I get an error lol?
https://www.fileforums.com/showpost....87&postcount=3

Sorry for bad english
I just want to repack all 43 games I downloaded for the past 6 years and update them all and burn them on BD but I need to understand how repacking works first.