However, the original cr2hdr can process the .dng file too.
Good point !
I'll add to the next release !
I rewrite the plugin, so I think it's for this weekend

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Okay, if a dng is sended to cr2hdr, it'll write the output with same name. I need to see how to make it nicely
(maybe disable check if dual iso already treated)With dng support, I can't check if file doesn't have interlaced iso without read text file ... I think I'll not add support for dng file or find an elegant way to check if dng and if interlaced iso found. I add it to the todo list