When you try to play digital CD audio, you may receive an error message on a blue screen that refers to one of the following files:

•	Ios.vxd
•	Vmm.vxd
•	Vfat.vxd
•	Kernel32.dll
•	Cdvsd.vxd
•	Usbaudio.sys
•	Universal Serial Bus (USB) audio driver name

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This problem can occur if your computer is equipped with a sound card, USB speakers, or any other device that enables digital audio, and any of the following Intel 800 series chip sets:

•	810
•	810E
•	815
•	815E
•	820
•	820E
•	840 (with the Integrated Audio-Codec 97 Controller

The vendor-supplied driver does not set the data transfer length in the Small Computers System Interface (SCSI) request block data structure that it passes to the miniport driver.

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A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site: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 English version of this fix should have the following file attributes or later:

   Date        Time    Version    Size   File name  Platform
   ------------------------------------------------------------------
   09/28/2000  10:26p  4.10.2186  32,443 Cdvsd.vxd  Windows 98
   09/28/2000  10:05p  4.10.2226  32,443 Cdvsd.vxd  Windows 98 Second
                                                    Edition
   09/28/2000  10:08p  4.90.3002  41,643 Cdvsd.vxd  Windows Me
				

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

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For additional information about Windows Me hotfixes, click the article number below to view the article in the Microsoft Knowledge Base: For additional information about Windows 98 and Windows 98 Second Edition hotfixes, click the article number below to view the article in the Microsoft Knowledge Base:

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