Please download the new converter app if your device support it: https://play.google.com/store/apps/details?id=roman10.media.converterv2
I've transferred the next generation of this app to another group for better support and development because I don't have time for new features. It has better interface and more features. ***
***New Feature***
video and audio information display
Scan entire devices for video files for conversion
Extract part of a video by specifying the start time and end time
Extract mp3 from video, extract aac from video, convert to mp3 or aac from mp4 and other video formats