Started to look at the readcd program Jalapeno uses... it can be used to create standard ISO images too. Jalapeno uses options that probably include more deeper data of the CD in its .rcd image.

To create a simple ISO compatible image with readcd:
1) Find your CD drive device by typing this in the shell: mossys:data/jalapeno/readcd -scanbus
2) Create an ISO image of a CD by typing this in the shell (replace "1,1,0" to what you saw in the previous step, and image path to what you want of course): mossys:data/jalapeno/readcd -dev 1,1,0 f=ram:image.iso

@Amigaharry2

I have set a temporary path and images are from Aminet CDs so 600/700Mb images.

@jPV

I tried with MakeCD too but freezes (like most classic apps that I try). Ill try Jalapeno again with your instructions, thank you.

I think you’ve misunderstood the purpose of this feature in Jalapeno. It lets one write an ISO file from the files and directories dropped onto the list. It does not copy an existing disc.