"Save audio" + "Copy" mode = audiotrack extraction doesn't work correctly?

[pixi]

I am using Avidemux 2.6.10 for Windows x86. Always when I am trying to save audio as it is in copy mode from any movie (mp3, ac3, aac... from avi, mp4, mkv...), I get a file that all audioplayers can't play. Please tell me, do I do it wrong, or is it the program can't extract audiotracks correctly?

[Jan Gruuthuse]

With loaded video:
Avidemux menu: Audio -> Select track:
in Audio Tracks Configuration
Track 1[v] (Select only one track if multiple tracks are present.)
Select in drop down menu [copy] -> MP3 (lame)]
[OK] (exit Audio Tracks Configuration)

Avidemux menu: Audio -> Save audio:
A progress window should pop-up:

[mean]

It will not work for AAC, AAC needs a container