Comment 2 for bug 835903

StacktraceTop:
 av_open_input_stream (ic_ptr=0x245e240, pb=0x245e190, filename=0x242cfb0 "/media/video/series/Prison Break/Season 4/Prison Break.m4v", fmt=<optimized out>, ap=<optimized out>) at /build/buildd/libav-0.7.1/libavformat/utils.c:469
 OpenDemux (p_this=0x2446d00) at demux.c:220
 module_need (p_this=<optimized out>, psz_capability=0x7f10f3160549 "demux", psz_name=<optimized out>, b_strict=true) at modules/modules.c:559
 __demux_New (p_obj=<optimized out>, p_parent_input=<optimized out>, psz_access=0x242cfe7 "m4v", psz_demux=0x7f10f31686d1 "", psz_path=0x7f10ec003cf0 "/media/video/series/Prison Break/Season 4/Prison Break.m4v", s=<optimized out>, out=0x7f10ec003800, b_quick=true) at input/demux.c:169
 InputSourceInit (p_input=<optimized out>, in=<optimized out>, psz_mrl=<optimized out>, psz_forced_demux=<optimized out>, b_in_can_fail=false) at input/input.c:2603