I had CD images working after a bunch of research, but lost my files and am reinstalling everything.
Been trying to mount .iso.hdf files or .img.hdf ones and when I mount them in the OSD I get the message filesystem not recognized, which I never got before.
I completely forgot what CD image files work on this. Been trying both Myst and AmigaOS39.
Got the CD0 moved to Devs and set as unit=1, but it seems like the image files just aren't working.