When you add sounds to WW1

This was something I did back in 2012. The actual footage was from the website that is shown on the footage itself. (Watermark) I played around with the video adding different sounds from different things, including my own stuff. I will say, I did export this video three to four times to add more sounds to the video, cause back then I was using Coral Studio. However, that did make the sound go off sync a few times. The WW1 Footage I believe is a reenacted scene of The battle of the Somme.