+@property (readwrite) int volume;
+@property (readwrite) int playbackRate;
+@property (nonatomic, readwrite) BOOL aspectRatioIsLocked;
+@property (readonly) int durationOfCurrentPlaylistItem;
+@property (readonly) NSURL * URLOfCurrentPlaylistItem;
+@property (readonly) NSString * nameOfCurrentPlaylistItem;
+@property (nonatomic, readwrite) BOOL mute;