I\'m having some issues with looping a sound in flash AS3, in that when I tell the sound to loop I get a slight delay at the end/beginning of the audio.
The audio is
I use this great tool: http://www.compuphase.com/mp3/mp3loop.zip
You give it a WAV file and it returns an MP3 file which can be perfectly (and gaplessly!) played using Sound's standard play method - e.g. :
var manyLoops:int = 1000*1000; // a Million is a lot :)
mySound.play(0, manyLoops);
You can also take the output MP3 file and re-convert it to a WAV (using AudioCity for example) - then you have a gapless WAV (which can work great inside your FLA file)
Hope it helps