I am currently running PDVD9 Ultra and so far have had no issues from everything I have tested with it, so far no issues in MP, of course I have only some basic types of video's and stored DVD's, i dont have some of not so widely used formats, maybe if someone has some links to some different types of movie files that we can download and test, i will let ya know if we have issues. But as of now everything seems to be fine.