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Article ID: 839303 - Last Review: September 27, 2011 - Revision: 3.0

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SYMPTOMS

When you pause or stop video playback in Microsoft Windows Media Player, the time code that is displayed by the player may differ from the time code that is displayed in the video. The time code may be different by one or two frames. This problem occurs when Windows Media Player plays back content that has a time code embedded in Windows Media Format and a time code imprinted on the video.

If you manually skip forward one frame, or if you manually skip backward one frame, the time code in the player synchronizes to match the time code in the video.

CAUSE

This problem occurs because of a rendering problem when you pause or stop video playback. Specifically, the time code is updating at the frame rate of the content. The user interface of the player samples the current time code on a timer. When the content is paused, this timer stops updating. Depending on the moment when you click the Pause button or the Stop button, one or two extra frames may be rendered. This behavior causes the two time code values to be different.

RESOLUTION

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next release that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The following file is available for download from the Microsoft Download Center:
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Download the WindowsMedia9-KB839303-ENU.exe package now. (http://download.microsoft.com/download/E/3/8/E3811779-0756-49E3-B37D-6FEDDE4C9661/WindowsMedia9-KB839303-ENU.exe)

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591  (http://support.microsoft.com/kb/119591/ ) How to Obtain Microsoft Support Files from Online Services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   17-Mar-2004  14:26  9.0.0.3147      4,685,824  Wmp.dll          

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

A tool can be created on top of Microsoft Windows Media Format SDK 9 Series. This tool can help you verify that the time code that is imprinted in the video frame matches the time code in the video. This can help narrow down the cause of the problem.

APPLIES TO
  • Windows Media 9 Series Software Development Kit
  • Microsoft Windows Media Player 9 Series
Keywords: 
kbdownload kbfile kbqfe kbbug kbfix kbhotfixserver KB839303
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