Hi Berion an welcome to ps3-tools.de.
First: thank you for the GFX´s of this tool and (a late) thank you for the FMCB GUI
Posting in english is no problem, most people here understand english.
I think you have understood Hatori´s Problem right - its crashing while SHA2-512 calculation. He is on Windows Vista with MS Netframework 4.0.
Chipwelt has tested your App on Windows XP and reported that it is running smooth.
I have translated the readme to german an attached it. I will do an translation for the FW Disciptions on coming weekend.
Hatori: Berion würde gerne noch wissen ob du den Fehler reproduzieren kannst, also ob der immer an der gleichen Stelle kommt oder an verschiedenen.