Problem with ISO mounting

[Frogowitsch]

Hi,
perhaps someone can help me. This is my problem :
I need to install a data cdrom for a program that I use. The programm only accepts CDROMs for updates. No directories or anything else. If I mount a directory to a drive letter, then it does not update, because the disc name is wrong.
How can I open a iso and mount it inside bottles ? Im fairly new to linux and would be very happy and thankful if someone has an idea. I searched now for hours and found no solution. The sandbox is very secure, but does it prevent my program from updating ?
I'm using ubuntu 22.04 and flatpack bottles.
Hope yo can help me
Thanks in advance
Tom