how to mux mp4(aac) into avi?

[Jerry_Sm@rt]

hi,
I tried to mux a mp4(aac) into an avi with avimuxgui.
But avimuxgui recognized .mp4 as an sub file not aac.
And i found that avimuxgui could accept .aac .
So would anyone tell me how can i mux a mp4(aac) made by oagmachine into an avi?

[bond]

avimux-gui doesnt handle .mp4 input, only .aac

[Jerry_Sm@rt]

Thanks,bond
So i need to convert .mp4 to .aac.
What's the difference between them?
Is there any tool can convert .mp4 to .aac without recoding?

[bond]

:search: :readfaq:

.aac is the plain aac bitstream, like .mp3
.mp4 is a container where you can place audio and/or video content

note that things like tags, gapless playback aso only work in .mp4 not .aac (if you want to stay 100% spec compliant to the mpeg-4 standard)

[Jerry_Sm@rt]

Thanks
I finally find a way like this:
.ac3->besweet&nero->.mp4->mmg->.mkv->mkvextractgui->.aac
then i can mux it into avi

[bond]

you can output .aac directly in besweet, via the "output iso 13xxx" option

[Jerry_Sm@rt]

oops
i didn't notice that before
Thanks