Hi there. I'm a RawTherapee developer. One user had a problem using a dual iso file with latest versions of RawTherapee. I can fix that bug in RawTherapee but nevertheless I think that the dng file is not correct. For reference please see here : http://rawtherapee.com/forum/viewtopic.php?f=1&t=6185#p43275 where I explained what's wrong.
http://rawtherapee.com/forum/viewtopic.php?f=1&t=6185#p43138 contains a link to an example file
Ingo
http://rawtherapee.com/forum/viewtopic.php?f=1&t=6185#p43138 contains a link to an example file
Ingo