Windows Media Player cannot perform the requested operation. You might encounter this error message for one of the following reasons:

• The file you are trying to play is protected with a license that prohibits this operation.
• You are attempting to play a .dvr-ms file that was recorded on another computer and that is protected with a license. The Personal Video Recorder (PVR) in Windows XP Media Center Edition, for example, might create a protected .dvr-ms file if the content provider (such as a television station) designated the content as protected. A protected .dvr-ms file can only be played on the computer on which it was recorded.