it took awhile to actually find an iso of puredyne but I did and used this... iso to dmg and no complaints... Apples are weird... some play nice some get thrown out windows... I dont if this helps at all but making a bootable iso for apple on your own... I format the drives to exFat or MS-DOS is usually the most universal format... OSX uses UDRW UDIF to mount otherwise no dice... Using a flasher there's no boot partition that is recognized in the iso so it freaks out.... terminal is always good...
hdiutil convert -format UDRW -o nameYourOutputFile nameOfYourInput FileISO
it took awhile to actually find an iso of puredyne but I did and used this... iso to dmg and no complaints... Apples are weird... some play nice some get thrown out windows... I dont if this helps at all but making a bootable iso for apple on your own... I format the drives to exFat or MS-DOS is usually the most universal format... OSX uses UDRW UDIF to mount otherwise no dice... Using a flasher there's no boot partition that is recognized in the iso so it freaks out.... terminal is always good...