Flash Won't Play Multiple Sounds

Okay, so I’m using

exampleSound = new Sound(this);
exampleSound.attachSound("exampleLinkageName");
exampleSound.start();

to play sounds for my game. Sometimes it works well, other times it plays some sounds and then the other and there is massive lag. I can’t figure out what the problem is and I need to fix this in order to get my game to ever work. :*(