[FFmpeg-trac] #2835(undetermined:new): FFMPEG created WTV files stop working with Microsoft Update KB2670838

[FFmpeg]

#2835: FFMPEG created WTV files stop working with Microsoft Update KB2670838
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             Reporter:  ramitbhalla  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Summary of the bug: WTV files created by ffmpeg stop playing in WMP and
 Windows MCE when Microsoft Windows Update KB2670838 is installed.
 However MCE created WTV files continue to play fine, only ffmpeg created
 WTV file don't play.

 When KB2670838 update is UnInstalled, MCE and WMP are able to play ffmpeg
 created WTV files.

 I understand WTV is a closed format but is there any way to know why MCE
 created WTV files play but ffmpeg created WTV files don't play?

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2835>
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