DDA grants ability to dump disc sector by sector as is directly from media, which means that produced *.iso from that is encrypted, and literally 1:1 (minus ofc hidden data with disc key etc.).
For that, can only be used multiMAN and any CFW. I don't know any other apps, including ManaGunz which allow that (it was planned feature few years ago, but if I'm not wrong, never implemented (@Zar [?])).