Simple Action Question

I want to replace the title with the File name

Field: TITLE
Original: %title%
Replace with: %_filename%

The above doesn't work so I guess I don't know what I'm doing

No comment ...
Use a different type of action for this task:
"Format value" for TITLE
Format String: %_filename%

Or you could just as easy use
Convert > Filename - Tag
as mask.

thanks... like a newbie I didn't read the regex examples in the forum .. I found the answer already posted here also: