Rui CarmomacOS’ hdiutil is the Swiss Army Knife for disk images.
Creating an ISO hybrid image from the current directory
hdiutil makehybrid /Users/user/Backup.source -o /Volumes/Firewire/Backup.iso -joliet -iso
macOS’ hdiutil is the Swiss Army Knife for disk images.
hdiutil makehybrid /Users/user/Backup.source -o /Volumes/Firewire/Backup.iso -joliet -iso