http://bugs.winehq.org/show_bug.cgi?id=27437
--- Comment #1 from Jerome Leclanche adys.wh@gmail.com 2011-06-10 00:18:10 CDT --- Ok, this is because wine is compiled --without-gstreamer.
Ill recompile and retest tomorrow. Either the freeze is a bug, or at least there needs to be a clearer error message when a codec/gstreamer support is missing.