Hmm, there might be some procedures to help you to get them backed up to ISOs, even if they seem unreadable. What program did you try to use to make the ISOs?
I have no idea, this was like 15 years ago haha It was probably Nero or Roxio. At this point I’m sure I could download the whole collection from somewhere.
Probably in a nicer format, better quality and better compatibility. Would not be surprised if the box set required its own software to be installed to read the magazine