http://www.mp3-box.org/downloading-mp3-files-from-youtube/
Changing a MP3 File Into A File That Can Be Uploaded To YouTube?
Hello, I have recently downloaded a .MP3 file from Media-Fire and I want to upload that file (The MP3 file to You-Tube) but when I go to do so, a message saying .MP3 files will not successfully upload to You-Tube, so what I am wondering, is what can I do to change my MP3 file, to a file or something that I can upload onto You-Tube, so people can watch it?
Well u need to convert the file to the .flv format, which is a flash video format. You can find some decent converters on download.com. Good luck.
How To: Download YouTube Music Videos For iPod or mp3