Problem: Editing multi-session image files

Hi everyone,
It’s been a long time since I posted. I hope you guys are still doing fine.

I’m currently having a problem with editing image files. I extracted the information from my disc but realised that there are 2 sessions in them. CloneCD managed to detect this and extracted the image file properly for me.

However, when I try to open them in software like WinISO and DirectISO, both give me the same error that the image file cannot be opened. Apparently, these programs can’t seem to open multi-session disc images, or is there a way to get around this?

I need to add one file to the current compilation, and I’ll appreciate any help with regards to this matter.

Thank you.