Microsoft KB Archive/939052

= When you insert a CD or a DVD, Windows Vista may not recognize the disc =

Article ID: 939052

Article Last Modified on 6/22/2007

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APPLIES TO


 * Windows Vista Home Basic
 * Windows Vista Ultimate
 * Windows Vista Business
 * Windows Vista Enterprise
 * Windows Vista Ultimate 64-bit Edition
 * Windows Vista Business 64-bit Edition
 * Windows Vista Enterprise 64-bit Edition

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SYMPTOMS
When you insert a CD or a DVD, Windows Vista may not recognize the disc. If you double-click the disc drive in Windows Explorer after you insert the disc, you receive the following error message:

Insert disk

Please insert a disk into Drive.

This problem occurs if the following conditions are true:
 * An audio device is disabled.
 * Windows Media Player is already running when you insert the disc.



CAUSE
This problem occurs because of an error in the Mcicda.dll file.



WORKAROUND
To work around this problem, exit Windows Media Player before you insert the disc. Or, if the audio device is not enabled, use the Sound item in Control Panel to enable the audio device. To enable the audio device, follow these steps:
 * 1) Click Start, click Control Panel, and then double-click Sound.
 * 2) On the Playback tab, right-click in the blank area under Select a playback device below to modify its settings, and then select Show Disabled Devices.
 * 3) Right-click an audio device, and then click Enable.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbtshoot kbprb kbexpertisebeginner KB939052

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