Getting parens and brackets into the filter field.

Hi, was wondering how to get "(" or "[" into the filter box on the bottom for title so I will catch items like:

03 Depeche Mode Halo (Live).wma
04 Depeche Mode Strangelove [Live].wma

Enclosing the characters in double quotes didn't seem to work. Thanks -

The filter supports regular expressions so you must put a backslash before these chars: (