I convert all of my videos to an MP4 format.I use DVD Catalyst for the conversion. I use AVplayerHD to watch them. Lets say I play one of the converted videos. Then I close minimize and go to something else. When I come back and start a new one, it is sometimes out of sync. If I close the app, and then go back in, most of the time it is ok. But there have been a few times where I need to do a hard reset before the video is correct again. Anyone else having this issue? Could it be the way that I am converting it?