Issue: You configure Windows Media Player 12 to display subtitles when you play a DVD. However, the video image flickers every time that a new line of subtitle is displayed. This problem occurs because of an issue in the way that the Enhanced Video Renderer (EVR) handles subtitle notifications
Microsoft has released a hotfix to resolve an issue, where the video image flickers when you configure Windows Media Player 12 to display the subtitles of a DVD in Windows 7 or in Windows Server 2008 R2.
The video image flickers when you configure Windows Media Player 12 to display the subtitles of a DVD in Windows 7 or in Windows Server 2008 R2