I'm running into a problem with the MPMoviePlayerContentPreloadDidFinishNotification notification. I've regisered to recieve the MPMoviePlayerContentPreloadDidFinishNotification notification and MPMoviePlayerPlaybackDidFinishNotification but the first one never fires. Is this bug in Firmware OS 3.0 ? maybe fixed in 3.1 ? or ? Because my divice and similator is 3.0 maybe this is a bug ?

My code :

...
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(MovieDidLoad:) name:MPMoviePlayerContentPreloadDidFinishNotification object:nil];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(MovieDidLoad:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];
...
-(void)MovieDidLoad:(NSNotification*)notification
{
    UIAlertView *alert = [[UIAlertView alloc] 
    					  initWithTitle:@"Notification Listener" 
    					  message:@"Notification Listener invoked" 
    					  cancelButtonTitle:@"Ok dude!" 
    					  otherButtonTitles:nil]; 	
    [alert show]; 
    [alert release]; 	

}

The MPMoviePlayerPlaybackDidFinishNotification is always fired but MPMoviePlayerContentPreloadDidFinishNotification is never fired. Any ideas ?