I've been using FRAPS.. Then was told that Dxtory was a good alternative.. so I bought it.. Unfortunately I am unable to delete the recorded file.. My windows will hang on "discovering files" or just simply in a perpetual "deleting" window. I've left it on overnight still nothing. It's not the size of the file as again I record with FRAPS yet ONLY with Dxtory files am I having this issue. I've even tried using "File Assassin" from malwarebytes and even that "hangs" as it attempts to delete the file/s.
Try LockHunter.
http://lockhunter.com/?ver=2.0.2.103&vertype=pro&sm=main_window_64&mode=&keystart=&keyend=