virtualbox.org

I created a VDI for an ISO and I don't know what I did wrong in settings. In Settings > Storage, I had set the ISO at the IDE Controller. What do you think can be wrong?

I really don't know what you are trying to do but try to mount the ISO to the virtual CD/DVD drive. Other than that you are going to need to better describe what it is you are trying to do.

try secondary not primary in your settings for your DVD