I have been making DVD's of my travels for quite some time and have had no problems. However, when I try to add a video which came from a Casio Exilon camera the video shows but there is no sound. It plays fine outside of videowave. The videos that I have added and that were taken on my Canon camera play just fine. Is there anything I can do about the other videos? Watching the Highland jig without the music is not very exciting, nor is watching a top notch fiddler play the fiddle with no music! Any suggestions?