so i downloaded thousands of videos as .mp4
I generated a .mp3 for each
so i have
songA.mp4
songA.mp3
songB.mp4
songB.mp3
etc..
etc ... across dozens of folders ...
I would like to rename them to
001_songA.mp4
001_songA.mp3
002_songB.mp4
002_songB.mp3
etc..
but I can only do
001_songA.mp4
002_songA.mp3
003_songB.mp4
004_songB.mp3
etc..
please see image here
http://i.imgur.com/kjTFJlb.png same link http://imgur.com/a/QLEEU
any advice?
or it's not a possible feature yet?
thank you ...