Most of the movies I'm trying to play are xvid/divx and for me, VLC plays a superset of the videos that Cinexplayer plays. I had a few files that Cinexplayer would crash out on or give me the "will not play" notification and all of these played on VLC. Having said that, there are still a bunch of files that VLC won't play for me and when it fails, VLC crashes out far less gracefully than Cinexplayer. Instead of a "will not play" warning box, it just freezes and then force closes and dumps me back on the home screen. I'm not worried, this is the first release. I'm sure it will be great after a couple of updates. As for the files VLC didn't play well, I had a few mp4 files that were not optimized for iPad and these were really laggy and juttered a lot.