I downloaded a video, mp4, and VLC plays it without sound, I tried adjusting the speakers but I guess that isn't the problem. I can get audio files to play with windows media player on this Dell Inspiron. Could it somehow have recorded just the video without the soundtrack? Also, there is a new version of VLC, 3.0.3, but both times I tried to download it, there was a message that the file was corrupted.