I have a legacy CDRW which shows up empty when mounted in either Linux or Windows. Extracting an iso image under linux via dd yields greppable strings which indicate files are hiding inside. How do I extract the files without knowing what format or filesystem they are in? Mounting the iso as a loop device in Linux yields no listable files. This disc is from ~2000. I assume the final FAT written to the disc is either corrupt or unreadable but files are written earlier on the disc. Is there a "file boundary guesser" that I can pipe the ISO to, which will spit out the possible files?