MPMoviePlayerController problem at start - objective-c

Question

I have a problem with MPMoviePlayerController, because when I start it in fullscreen it exists, but the song is still playing. I added the MPMoviePlayerDidExitFullscreenNotification notification and it says that when the video starts playin it exists the full screen. Here's my code:
_multimediaPlayer = [[MPMoviePlayerController alloc] init];
_multimediaPlayer.controlStyle = MPMovieControlStyleDefault;
_multimediaPlayer.initialPlaybackTime = 0;
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(videoPlayBackDidFinish:)
name:MPMoviePlayerPlaybackDidFinishNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(videoPlayerDidExitFullscreen:)
name:MPMoviePlayerDidExitFullscreenNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(videoPlayerPlaybackStateChanged:)
name:MPMoviePlayerPlaybackStateDidChangeNotification
object:nil];
NSString *path = [NSString stringWithFormat:#"%#/mag_%d/%#", [FMUtils documentsFolderPathWithFile:nil], _magID, _pageObject.fileName];
if ([FMUtils fileExistsAtPath:path]) {
_multimediaPlayer.contentURL = [NSURL fileURLWithPath:path];
} else {
_multimediaPlayer.contentURL = [NSURL URLWithString:[NSString stringWithFormat:#"%#%#", self.dataURL, _pageObject.fileName]];
}
CGSize objectViewSize = self.frame.size;
_multimediaPlayer.view.frame = CGRectMake(0, 0, objectViewSize.width, objectViewSize.height);
[self addSubview:_multimediaPlayer.view];
if (_pageObject.blink) {
[_multimediaPlayer setFullscreen:YES animated:YES];
}
[_multimediaPlayer play];
Most of the time it happens when the video is not downloaded and it needs to stream it.
Do you have any idea why is this happen?

Answer 1

Problem solved while I not listen to MPMoviePlayerPlaybackStateDidChangeNotification.