Hello, Ive taken a movie thats an avi file and cut & appended my favorite parts together. Now, I want to add an mp3 file to it for music to play while the clips play. But when I go to the audio tab, then main track and then audio source, I cant get rid of the word video. I have done this before and I usually save the avi file and am able to save with audio source as "none".

Its not working this time. The word video comes back after I chose an mp3 so I cant put any sound to it. Does the format tab in the bottom left hand corner have any decision how it saves. For instance, does avi or avi, unpack VOP matter?

Heres an idea of my problem, note post#5:

https://forum.videohelp.com/threads/329915-How-to-demux-avi-file-with-multiple-audio-tr...light=avidemux

track from video option is blank but the audio source stays video and wont allow me to add an mp3 to it