Replace with Regular Expression
This action uses regular expressions when replacing strings in the specified Field.
Regular expressions is a formal language that is used to find strings or parts of strings that match a specific pattern. This pattern is defined by Regular expression and matches are replaced by the given replacement string defined under Replace matches with.
Please note that matches can be referenced.
If case-sensitive comparison is enabled, Mp3tag replaces Original only if it is matched using the same upper and lower case.
_TAGcovers all tag fields
_FILENAMEdenotes the file name of the file including its extension
_DIRECTORYdenotes the parent directory of the file