MediaElement not releasing the file on its Close() method in WPF

using System;<br />
using System.Collections.Generic;<br />
using System.Linq;<br />
using NAudio.Wave;<br />
using System.Windows.Threading;<br />
using System.Diagnostics;<br />
using System.IO;<br />
<br />
namespace NAudioConsoleDemo<br />
{<br />
	class Program<br />
	{<br />
		private static List<iwaveplayer> _mediaPlayers = new List<iwaveplayer>(2);<br />
		private static List<wavestream> _mediaStreams = new List<wavestream>(2);<br />
<br />
		private static string _fileName1 = @"D:\Audio Files\Song skip\911.wav";<br />
		static Stopwatch _watch = new Stopwatch();<br />
<br />
		static void Main(string[] args)<br />
		{			<br />
			Console.WriteLine("Started");<br />
			<br />
			Play();<br />
<br />
			Console.ReadLine();<br />
		}<br />
<br />
		private static void Play()<br />
		{<br />
			for(int index = 0; index < 2; index++)<br />
			{<br />
				_mediaPlayers.Add(CreatePlayer());<br />
				if (_mediaPlayers[index] != null)<br />
				{<br />
					_mediaPlayers[index].PlaybackStopped += MediaPlayerOnPlaybackStopped;<br />
				}<br />
				_mediaStreams.Add(CreateMediaStream(_fileName1));<br />
			}<br />
<br />
			int counter = 0;<br />
<br />
			// Play all the players<br />
			foreach (var mediaPlayer in _mediaPlayers)<br />
			{<br />
				if (_mediaStreams[counter] != null)<br />
				{<br />
					mediaPlayer.Init(_mediaStreams[counter]);<br />
				    mediaPlayer.Play();<br />
					_watch.Start();<br />
					Console.WriteLine("[{0}] Media Playing... ", counter);<br />
					System.Threading.Thread.Sleep(1000);<br />
				}<br />
				counter++;<br />
			}<br />
		}<br />
<br />
		/// <summary><br />
		/// Creates a player to play media on this device<br />
		/// </summary><br />
		/// <returns>player to play the media</returns><br />
		private static IWavePlayer CreatePlayer()<br />
		{<br />
			return new WaveOutEvent();<br />
		}<br />
		private static object lockObj = new object();<br />
<br />
		/// <summary><br />
		/// Called when media has stopped playing<br />
		/// </summary><br />
		/// <param name="sender">sender</param><br />
		/// <param name="e">Stopped Event arguments</param><br />
		protected static void MediaPlayerOnPlaybackStopped(object sender, StoppedEventArgs e)<br />
		{<br />
			_watch.Stop();<br />
			<br />
			var mediaPlayer = sender as IWavePlayer;<br />
			if (mediaPlayer != null)<br />
			{<br />
				int index = _mediaPlayers.IndexOf(mediaPlayer);<br />
				var mediaStream = _mediaStreams.ElementAt(index);<br />
				Dispose(mediaPlayer, mediaStream);<br />
				_mediaStreams.RemoveAt(index);<br />
				_mediaPlayers.RemoveAt(index);<br />
				Console.WriteLine("[{0}] Media Stopped", index);<br />
				Console.WriteLine("[{0}] Total Time: {1}", index, _watch.Elapsed.TotalSeconds);<br />
			}		<br />
<br />
			if (_mediaPlayers.Count == 0)<br />
			{<br />
				// Delete the media File<br />
				File.Delete(_fileName1);<br />
				Console.WriteLine("Media Deleted");<br />
			}<br />
		}<br />
<br />
		protected static WaveStream CreateMediaStream(string filePath)<br />
		{<br />
			return new WaveFileReader(filePath);<br />
		}<br />
<br />
		private static void Dispose(IWavePlayer mediaPlayer, WaveStream mediaStream)<br />
		{<br />
			if (mediaPlayer != null)<br />
			{<br />
				mediaPlayer.Stop();<br />
				mediaPlayer.Dispose();<br />
				mediaPlayer = null;<br />
			}<br />
			if (mediaStream != null)<br />
			{<br />
				mediaStream.Dispose();<br />
				mediaStream = null;<br />
			}<br />
		}<br />
	}<br />
}</wavestream></wavestream></iwaveplayer></iwaveplayer>