The Quicktime plug-in should initialize. The audio file should automatically play and loop. If that does not happen, your browser, most likely, is not properly passing to the Quicktime plug-in. This probably means your browser is ignoring the data and or the codebase attribute. If the plug-in initializes, but does not automatically play or loop, your browser is probably not passing parameters to the plug-in properly. In this case, click the play button on the Quicktime plug-in interface. If the file still does not play, then your browser really messed up and initialized the plug-in without any data instead of displaying the alternate content.