well - it just doesnt do it - i also noticed some unprintable characters in filenames. perhaps there is a chance to get this fixed, despite the sourceforge looking abandoned. i like this little app, very handy... Reproducible: Always Steps to Reproduce: set 'ENCNAME : %n %a %s' in the configfile - filename wont contain numbers... tell me if u need more info.
probably not what you wanted to hear, but i removed the package because it's dead upstream. there are still plenty alternatives that do this job.
what a pitty - oh well u'r right...nevermind