SL3: Controlling Silverlight MediaElement Audio Volume

<UserControl x:Class="MediaElementControls.MainPage"
   xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  >
   <Grid x:Name="LayoutRoot">
       <StackPanel>
           <MediaElement x:Name="media" Source="/xbox.wmv"
          Width="300" Height="300" 
          AutomationProperties.Name="Video of new Fable game for XBox"           
       />
           <Grid Name="UIControls">
               <Grid.ColumnDefinitions>
                   <ColumnDefinition Width="*" />
                   <ColumnDefinition Width="*" />
                   <ColumnDefinition Width="*"/>
               </Grid.ColumnDefinitions>
               <Grid.RowDefinitions>
                   <RowDefinition Height="*" />
                   <RowDefinition Height="Auto" />
                   <RowDefinition Height="20" />
               </Grid.RowDefinitions>
               <Button Click="StopMedia" 
    Grid.Column="0" Grid.Row="1" Content="Stop" />
               <Button Click="PauseMedia" 
    Grid.Column="1" Grid.Row="1" Content="Pause" />
               <Button Click="PlayMedia" 
    Grid.Column="2" Grid.Row="1" Content="Play" />
               <Button Click="MuteMedia" 
   Grid.Row="2" Grid.Column="0" Content="Mute" />
               <TextBlock Name="VolumeLabel" Grid.Row="2" Grid.Column="1" HorizontalAlignment="Right">Volume</TextBlock>
               <Slider Height="20"
           Value="{Binding Volume, Mode=TwoWay, ElementName=media}"
           Minimum="0" Maximum="1"
           Grid.Row="2" Grid.Column="2" Grid.ColumnSpan="2"
               AutomationProperties.LabeledBy="{Binding ElementName=VolumeLabel}"/>
           </Grid>
       </StackPanel>
   </Grid>
</UserControl>

 private void StopMedia(object sender, RoutedEventArgs e)
 {
     media.Stop();
 }
 private void PauseMedia(object sender, RoutedEventArgs e)
 {
     media.Pause();
 }
 private void PlayMedia(object sender, RoutedEventArgs e)
 {
     media.Play();
 }
 private void MuteMedia(object sender, RoutedEventArgs e)
 {
    Button target = sender as Button;
    // mute if not muted, unmute if already muted, in either case make sure the button content for text and accessibility info is updated
    if (!media.IsMuted)
    {
       media.IsMuted = true;
       target.Content = "Unmute";
    }
    else
    {
        media.IsMuted = false;
        target.Content = "Mute";
    }
 }