Windows Media Player cannot play the file. You might encounter
this error message for one of the following reasons:
The license for the file is either corrupted or not valid. The
license might no longer be valid, for example, if you have replaced
hardware components in your computer.
The digital rights management (DRM) software on the computer
might be corrupted. As a result, existing licenses on your computer
might not work correctly, or the Player might be unable to acquire
new licenses. Microsoft Knowledge Base Article 810422 is
available to help you troubleshoot this issue.