I'm trying to convert a .MKV file into a .DIVX format because the device I'm using requires a .DIVX container. I am using the DivX Plus Converter (free version) and when I convert it the sound is out of sync. I think this is because the .MKV file is 25.253 FPS and the converted .DIVX is 29 FPS. When I convert a 29 FPS .MKV to a 29 FPS .DIVX the video works fine. Is there way to convert a 25 fps .mkv to a 29 fps .divx without having the sound out of sync?