I made mine 20 - 30 seconds long because when someone calls you your phone will ring for about 10-20 seconds before the caller gets sent to voicemail and as you know your phone will stop ringin'. Your next question, when you place the command codes and added your first song to your iPhone simply press up or down arrow (on commmand prompt) and it should copy the command code for you just change the .m4a to another ringtone you have. Thats it. Hope this helps!
Originally Posted by diamosaur
Oh and also, can you add more than one ringtone at a time, or do you have to do the whole tutorial over each time you want to add a new ringtone?