When you attempt to play video from a DVD drive, you receive:
Playback failed due to a problem in the video subsystem.
This error indicates that your DVD decoder is NOT compatible with Windows XP.
To determine what DVD decoder you have installed:
1. Open a CMD.EXE prompt.
2. Type dvdupgrd /detect and press Enter.
If you receive No decoders found, search Help and Support for DVD decoder and select the If you do not have a DVD decoder topic.