In documentation "newState" property (useful for keeping state machine of media player around) is documented as being Number data type. However at runtime it is provided as a string (String data type),

To recreate issue compile provided sample project.
it contains a code to check for type of value at runtime:

/**
* called by media player instance when
* player state is changeds
* see: http://www.multidmedia.com/support/livedocs/index.php?url=main.php?action=events%C2%ACclass=MediaPlayer%C2%ACid=197
*/
function playerNewState(evt:Object):void
{
debug("playerNewState: "+evt.newState);
debug("typeof evt.newState: "+(typeof(evt.newState)));
};

The actual output of application is:

initApp();
playerNewState: 3
typeof evt.newState: string
playerNewState: 8
typeof evt.newState: string
playerNewState: 9
typeof evt.newState: string
playerNewState: 1
typeof evt.newState: string


while data type should be "number"
http://www.multidmedia.com/support/livedocs/index.php?url=main.php?action=events%C2%ACclass=MediaPlayer%C2%ACid=197