I need to specify the audio track names in mp4box such that it is readable by Itunes.I've tried -add audio:lang=en:name="Dolby Surround" and it does name the audio track (as displayed by mediainfo and Media player Classic) but is not readable by Itunes. I don't know if mp4box can do it but I know handbrake can. By default an Itunes audio track should read "Audio Track X" but If done in handbrake it reads "Stereo" or I assume "5.1" but I haven't tried the latter. So if anyone knows an mp4box operation that will set the name of the audio track and is readable by Itunes it would be very much appreciated.