You may be unable to read from DVD-R DL or DVD+R DL discs that were recorded in Windows Vista


After you burn a DVD-R Dual Layer (DL) disc or a DVD+R DL disc in Windows Vista, you may be unable to read the disc. When you try to read the disc, you may receive an error message that resembles the following:
Drive_letter:\ is not accessible.
The disk structure is corrupted and unreadable
When this problem occurs, the disc properties may indicate that the disc contains no files and that the size of the disc is zero.

This problem is known to occur when you use specific models of DVD drives that were manufactured in about 2004 or earlier.


Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) 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 item in Control Panel.
Windows Vista, x86-based versions
File nameFile versionFile sizeDateTimePlatform
Update.mumNot applicable1,99915-Aug-200715:37Not applicable
X86_7c3b956690431d40a8c3a98cc1c29762_31bf3856ad364e35_6.0.6000.20661_none_18d308d6eed62955.manifestNot applicable69215-Aug-200715:37Not applicable
X86_microsoft-windows-udfs_31bf3856ad364e35_6.0.6000.20661_none_a4dd1544390a8393.manifestNot applicable6,02015-Aug-200715:37Not applicable
Windows Vista, 64-bit versions
File nameFile versionFile sizeDateTimePlatform
Amd64_8bedac795dba45dd70fc4d1a35735a2d_31bf3856ad364e35_6.0.6000.20661_none_1db2b116430086c0.manifestNot applicable69615-Aug-200715:37Not applicable
Amd64_microsoft-windows-udfs_31bf3856ad364e35_6.0.6000.20661_none_00fbb0c7f167f4c9.manifestNot applicable6,27515-Aug-200715:43Not applicable
Update.mumNot applicable1,99915-Aug-200715:37Not applicable


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 Windows Vista Service Pack 1.

More Information

This hotfix cannot resolve the problem for all DVD drives. If this hotfix does not resolve the problem for the drive that you use, contact the manufacturer of your hardware for more information about how to resolve the problem.

For information about your hardware manufacturer, visit the following Web site:For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Artikel-id: 933207 - Laatst bijgewerkt: 22 jul. 2009 - Revisie: 1