What's happening is you have the file name wrong (a guess). I'm assuming "data\audio\driveby.wav1.wav" does not exist and it should probably be "data\audio\driveby.wav". When RC can't find the wav file it assumes you want text to speech, but you have illegal characters for the text to speech to work so it puts up that error and prevents you from creating the new race and/or updating the existing one.