Compatibility? No.

I downloaded this application looking for a nice picture editor/viewer etc. I read up in the description how its compatible with lots of different picture file formats. The first picture I try to open crashes the application. I try it again. Crash. Once more, crash. Then I thought "Perhaps its just the file format of the picture," so I tried a couple other pics on my computer. Every single picture-without fail- crashed the application.

Brett Daiger about HDRtist