Hey guys, I've followed all the tips on how to make a custom ringtone from a song on my library. I've edited the file down to 29 seconds, imported the mp3 into iTunes, converted to AAC, found the folder containing the m4a and renamed to m4r, dragged the m4r into iTunes, where it has been placed in the "Ringtones" section of my library. However, when I sync my iP4, it does not sync into the "Ringtones" section of the iPhone. The file is m4r and 29.543 seconds long. Any help?