3gpp2/3g2 Files in Windows 7

I have a bunch of these files uploaded from my phone camera. The video files play great, but there is no audio.

I have installed ffdshow, k-lite, quicktime alternative, and QT-Lite. Nothing has worked. Do I have to suck it up and install quicktime to play these files? VLC? I really want them to play in WMP.

UPDATE: VLC does not work either. Video is perfect, no audio.

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