Apparently has something against PowerDVD 8 movies in Matroska containers (mkv - files) on your hard disk, for both drag and drop, and manually adding the playlist are completely ignored.
Against this "protection" simply helps a simple renaming the file in eg "Movie.avi and Power DVD is the version used by me (8.0.2217) no more problems.
Sham suppose to be a legal problem, which has forced the developers to incorporate the protection.
