FIX: Windows Media Player does not correctly detect MPEG2 content with embedded MP3 audio (328572)


The information in this article applies to:

  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
This article was previously published under Q328572

SYMPTOMS

When the Windows Media Player on Windows XP plays back some MPEG2 content, the player cannot accurately decode the file, although a decompressor is available on the computer. Programs such as Windows Media Player 6.4 and Graph Edit can play back the file.

CAUSE

Windows Media Player analyzes several thousand bytes of data to determine if the content has MP3 Audio. If the player finds MP3 Audio in the file, the Windows Media SDK renders the content.

RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

322389 How to obtain the latest Windows XP service pack

Hotfix information

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 Windows XP service pack 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

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.

File information

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
   ----------------------------------------------------------
   13-Sep-2002   15:45   8.0.0.4488   1,220,608   Wmvcore.dll
The following file is available for download from the Microsoft Download Center:

DownloadDownload the Wm328572.exe package now.

Release Date: September 20, 2002

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 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.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows XP Service Pack 2.

MORE INFORMATION

A valid MPEG2 file has an initial 4-byte sequence that uniquely identifies the content as an MPEG2 file. If this byte sequence is detected, the SDK hands off the content to be rendered correctly.
Modification Type:MinorLast Reviewed:10/5/2005
Keywords:kbQFE kbdownload kbbug kbfix kbWinXPpreSP2fix kbWinXPsp2fix KB328572
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