Bulk Rename Utility version 184.108.40.206 has been released, and contains the following minor changes:
!=Bug, +=new feature / enhancement / change
! Prevent crash when encountering zero-byte MP3 files
+ Change the way that A-Z and a-z autonumber padding works
+ Attempt to process malformed EXIF headers
+ Allow for > 20 sections within EXIF
+ Allow the root to be Desktop (NB READ Forum Announcement!)
I'm struggling for time at the moment, so rather than wait until I've new functionality to add, I've released this to address a few quirks that some people have encountered.