Busted Knuckles,

That is strange (and frustrating I'm sure). I'm not having trouble with creating JPGs from 5Ds R RAW files using DPP's CTRL-D or CTRL-B. I'm on build 4.2.31.0.

Does Batch process (CTRL-B) work for you?

Does output to TIFF work?

Calling Canon support might be the most expedient solution. Another idea is to uninstall your Canon software and reinstall from the DVD in the 5Ds R box.

Best regards,

Bryan