Fixed a minor issue with embedded Windows Media files.
Fixed a minor issue with embedded Windows Media files.

barryvdh/simplepie,barryvdh/simplepie,Alkarex/simplepie,barryvdh/simplepie,wikidi/simplepie,Alexia/SimplePie,simplepie/simplepie,blat/simplepie,songfj/simplepie,simplepie/simplepie,mblaney/simplepie,wikidi/simplepie,FreshRSS/simplepie,mblaney/simplepie,ropik/simplepie,Alexia/SimplePie,Alkarex/simplepie,blat/simplepie,skyzyx/simplepie,Alkarex/simplepie,songfj/simplepie,ropik/simplepie,wikidi/simplepie,gsnedders/complexpie,songfj/simplepie,skyzyx/simplepie,blat/simplepie,FreshRSS/simplepie