SYSGeeker UltraDMG overview

You may often encounter the issues that your computer refuses to start normally, this could happen for many uncertain reasons, such as system crashes, file corruption, hardware failure, Viral infection or buggy updates and other unknown factors. so you will have to reinstall your macOS, Creating a macOS installer is a must, UltraDMG is such a tool that can be used to create a macOS installation media so that you can repair or reinstall your macOS at any times all by youself.

What UltraDMG tool can do for you:

Burn DMG/Bin/Img/Raw to USB/DVD, It supports burning 5+ image file to USB flash drive or DVD/CD, including DMG, Bin, Img and Raw.
Extract Everything from DMG File
Two Options to Create A macOS Install Disk: USB drive and DVD/CD.
Run on both old and new Mac operating systems, ranging from Mac OS X (10.9 -10.12) to macOS (10.13-15.7).