Why won Windows Vista play copied discs? Is there a way to patch or fix it?
Windows Vista includes content protection infrastructure specifically designed to help ensure that protected commercial audiovisual content, such as newly released HD-DVD or Blu-Ray discs, can be enjoyed on Windows Vista PCs. In many cases this content has policies associated with its use that must be enforced by playback devices. The policies associated with such content are applicable to all types of devices including Windows Vista PCs, computers running non-Windows operating systems, and standalone consumer electronics devices such as DVD players. If the policies required protections that Windows Vista couldn’t support, then the content would not be able to play at all on Windows Vista PCs.