I'm playing a video (F4V). in debug mode, both desktop and device it runs smoothly, as soon as I export a release build the video plays but there is no sound, no amount of fiddling with codecs seems to fix it so I'm guessing that's not the problem. My thoughts are it has something to do with Air since the debug runs over it and the final release compile it as far as I can tell.
Thanks for the help in advance