Sound plays in stand-alone SWF, but not when SWF is loaded into another SWF

Question

I have my Main FLA (Main.SWF) into which I load another SWF (1.SWF).  I have a sound the plays in 1.SWF and it works just fine when I publish 1.SWF alone.  When I load 1.SWF into my Main.SWF and publish Main.SWF, the sound in the loaded 1.SWF no longer plays.  I can't figure out why.
//Here's the code (AS2) in 1.SWF to play the sound; seems pretty straight forward.
mySound = new Sound();
mySound.attachSound("soundSWF1");
mySound.start();

Answer 1

I found some information on-line that helped me figure out how to fix this issue.  First, I moved the sound object code to the timeline of the movieclip in which I wanted to play the sound, even if the movieclip was in a loaded SWF.  So if I my sound should play in mc_1.mc_2.mc_3, the sound object is created in mc_3 timeline.  Also, when creating the sound object, "this" is placed as the parameter, as such:
soundObject = new Sound(this);
Also, when stoping the sound, I'm using stopAllSounds() instead of soundObject.stop().
I hope this helps someone who is struggling with this same issue.