I try this:
PlayMusic = new MediaElement();
PlayMusic.AudioCategory = Windows.UI.Xaml.Media.AudioCategory.Media;
PlayMusic.Source = new Uri(@\"C:\\Users\\Us
You cannot just read any file on your file system like this with windows store applications.
If you just want to test it:
What you probably want to do is explained in the section, Read Local files w/o a Picker from this article. This might also be helpful.