I have been going crazy trying to figure why my iphone won't play my dvd's. I use CloneDVD Mobile transfer it to i-tunes and it plays fine, then i sync it to my iphone. Everything looks good until i open the movie file and my screen will turn black and 4 seconds later it will show the video file again. Please help!!!!!!!!! I've spent way to many hours trying to figure this out.
You can convert the dvd file to mp4 file first. Please rean the tutorial of how to convert DVD to iphone video.