N newtoiphonesdk macrumors 6502a Original poster Jul 30, 2010 567 2 Feb 10, 2011 #1 I am wanting to add an mp3 file to an existing m4v without removing the original audio track, and have them both play at same time. How could I do this? i tried adding it with subler, but subler doesn't recognize mp3s.
I am wanting to add an mp3 file to an existing m4v without removing the original audio track, and have them both play at same time. How could I do this? i tried adding it with subler, but subler doesn't recognize mp3s.