How to number split output files using %02d from “01” in FFmpeg”

Question

Using latest FFmpeg on Windows 7 within an AutoHotkey routine

Is there a way to get FFmpeg to number the output files from 01? This line of code works as expected except %02d returns the first file as Output_00.mp3

ffmpeg -i "%SelectedFile%" -c copy -map 0:0 -segment_time %Seg% -f segment -start_number 1 "%dir%\%name_no_ext%_`%02d.%ext%"

Answer 1

For the segment muxer, the syntax is -segment_start_number 1