I accidentally deleted a recording from a subdirectory with the red button and it went to the .Trash directory
So I changed to the .Trash directory and tried to move it back where it was. Pushed the green button to move, didn't see the target directory in the list, so I selected 'Other'.
The right directory was still not shown in the list, so I pushed menu to get to directory browsing mode, but when I pushed '1' to get to the directory list, the box showed the black screen with error messages and rebooted enigma. This happened two more times before I gave up. I'll attach the crash logs.