@anonimo2001: please upload a full debug log(wiki) from build #0815, covering the period when you try to play a movie with dvdplayer.
Texture Cache Maintenance Utility: Preload your texture cache for optimal UI performance. Remotely manage media libraries. Purge unused artwork to free up space. Find missing media. Configurable QA check to highlight metadata issues. Aid in diagnosis of library and cache related problems.