I have two MP4 Amy vids I have downloaded from YouTub. I want the sound on one of them to replace the sound on the other.

In other words, I want to remove the sounds from vid 1, and put the sound from vid 2 on it.

Does anyone have a clue how this is done?

Hi Jayne, What you need is a video editor. Generally you import the video to the program and it shows a timeline for both the video and the audio, separated. You just have to copy and paste the audios, replacing them one by the other. I don't usually use those programs so there isn't any that I can recommend you, but it's a basic edition so every video editor one step above Windows Movie Maker should do it, it isn't very hard to find a free trial on the internet! Just google for Video Editors. Maybe someone here can be more useful than me to recommend you one. Hope this was helpful :)

Thanks Pi. It was very helpful. I'll do a search and see what I can find.