Sorry my fault, it was a translating problem, that's why I accidentally unchecked the control box.
Another hint. This recording had the ts-format. I got the record from clean satellite source (dvb-s2). But when I open it in Videopad the video and audio track is not synchron. In windows media player the ts-file is synchron. I first have to convert this file into mp4 format in another video editor and when I load this new mp4 file in Videopad, video and audio track is also synchron.
