dot net video project fix required

Fix needed to MvTv System. (worked before the player? was improved , so sample code exists). 1.? Skip over a video file if it can't be played. (Code already exists to check if file is missing... if so, we skip to next clip... we need extra code to check if file is damaged... if so, we skip to next clip. Installation, etc. not required. I just need a few lines of code added to check for the 2nd condition. I will test and make the builds myself, then sign-off when code is good.