Well... yes you are.
Of course I do not want to burn the ISO on the DVD. I want to create a DVD from the ISO that recedes inside a rar-archive.
So to what I want in details:
1. I backup my DVD to an ISO-file on disk just as normal.
2. I archive the recently created DVD-iso in a multi-file rar-archive.
3. Later I want to burn a DVD from the ISO that I previously made. (or some may say received in a some other way, what do I know? )
4. I want to do that using ImgBurn without first un-raring the image to disk, I just let ImgBurn find the ISO inside the rar-archive and burn a DVD using the ISO as source on the fly.
I just want to keep my rared ISO's and the player i XBMC (XBOX MediaCenter) can play the rar:ed ISO.
Still thinks this would be an awsome feature!