I am using MPCStar media player. The media player works very slow when I try to play some dvd videos. It takes quiet long time to launch and sometime I got a message that program not responding. On the same hand if have some mp4 videos of above 800mb. When I play them in this media player they work flawlessly. Those dvd video work on my tv dvd player. Is there some issue with this software. I had notice that when I try to load my music playlist it freezes in between and then starts back again. I am using Windows 7.