Having EXR sequence playback in the viewer would be phenomenal and would completely remove the need for a ton of different installed players or paying for something like RV or Anchorpoint. I noticed people have been asking for EXR support back from even 2010. FastPictureViewerPack Codec is abandoned and also not an integrated solution with the actual player in Opus. If this is able to be achieved I won't ever have to go back to other solutions and Directory Opus would officially beat everything else.