AOMRecordedRenamer allows you to rename your Age of Mythology : Titans RCX recorded game files with ease. You can select from many different options of data retrieved from the recorded game to insert as text in the renamed file.
Screenshots, comments, documentation, and updates are available at:
http://software.magneticpole.com/rcxren/
Edit: Updated to version 1.2 with bug fixes, automatic rename, move ability, new parameters, rating rounding, and name trimming.