KrK / Team 360h released a version of ISO2GOD, a tool used to convert an Xbox 360 and Xbox 1 ISO images into Games on Demand containers, removing the need for a DVD drive in your 360 for XDK-homebrew 360s.

What's new/fixed:
* XGD3 ISO images can now be opened.

Download ISO2GOD v1.3.6
Source- xboxhacker.org