Problems with Two Digital Video Camcorders That Are Connected to Two Different IEEE 1394 Adapters

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This article was previously published under Q319739

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SYMPTOMS

When you connect two digital video camcorders to two different Institute of Electrical and Electronics Engineering (IEEE) 1394 adapters and you are running in the Camera mode, the first camcorder you attach to the computer may works correctly, but the second camcorder may not work correctly. Although you may be able to switch between the two camcorders in Microsoft Movie Maker, you may only be able to obtain a picture from the first camcorder.

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RESOLUTION

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

322389 (http://support.microsoft.com/kb/322389/EN-US/ ) How to Obtain the Latest Windows XP Service Pack

The English version of this fix should have the following file attributes or later:

   Date         Time    Version       Size    File name
   ----------------------------------------------------
   10-Apr-2002  16:34   5.1.2600.42   46,464  61883.sys

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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows XP Service Pack 1.

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MORE INFORMATION

There is a limitation of One digital video camcorder for each IEEE 1394 adapter. There is a limited amount of available bandwidth for ISOCH data on the IEEE 1394 bus, so two camcorders on a single IEEE 1394 controller cannot be supported. Note that this is a design limitation, and is not supported. Although some combinations of different camcorders may work in this specific scenario, Microsoft cannot guarantee this successful use of this configuration, and this configuration is not supported.

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