When you try to play a DVD-RW or a DVD+RW disk by using either Windows Media Player or Sonic CinePlayer from Sonic Solutions, you may receive the following error message:
The DVD key exchange for copy protection has failed. Playback is not possible.
This issue occurs when Copy Protection for Recordable Media (CPRM) is enabled for the DVD-RW or the DVD+RW disk, but the disk is not encrypted. The DVD component that is used to play back the DVD-RW or the DVD+RW disk tries to start an encrypted session, and it is unsuccessful because the disk is not encrypted.
Service pack information
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 How to obtain the latest Windows XP service pack
To resolve this issue, Microsoft recommends that you download and install DirectX 9.0b or later on your computer. To do this, visit the following Microsoft Web site:
In those situations where your video hardware does not support DirectX 9.0, a hotfix is available to resolve this issue. Verify the file version for the existing Qdvd.dll file. If the file version is 6.4.2600.1106, you can obtain and install the supported hotfix that is described later in the "Resolution" section of this article.
To verify the version of Qdvd.dll that is installed on your computer, follow these steps:
Open the following folder:
Locate the Qdvd.dll file, right-click the file, and then click Properties.
Click the Version tab.
If the file version is 6.4.2600.1106, you can install the following hotfix.
Note This hotfix will not install on computers that have DirectX 9.0 installed. If this is the case, you must upgrade to DirectX 9.0b or later to install this hotfix. 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 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:
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 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 -------------------------------------------------------- 07-Mar-2003 17:36 6.4.2600.1182 357,376 Qdvd.dll
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.
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.