How to Remux MP4 to AVI?

[JasonR]

I did a search, but couldn't find an answer to my problem. I have a bunch of videos encoded in Xvid with the MP4 container. I need to remux them all with an AVI container so that they will play on my Xbox 360. I don't need to re-encode or change anything else on the videos, just the container. Can anybody tell me what the best/fastest program is to do this with and if there are any guides? Any help would be much appreciated. Thanks in advance.

[Placio74]

MPEG Streamclip (with installed QuickTime).
File > Save As... > and change file type to AVI (.avi)
Later eventually change FourCC tag.

FFmpeg
ffmpeg -i name_file.mp4 -vtag XVID -vcodec copy -acodec copy name_file.avi

MediaCoder - set AVI container, copy video and audio (or reencode), set FourCC in advanced configuration.

Avidemux - set AVI container, copy video and audio (or reencode); later eventually change FourCC tag.

Demux A/V used Yamb (MP4Box) > mux to AVI used VirtualDub, AVI-Mux GUI or Avidemux > later eventually change FourCC tag.


What's audio in this videos?

[JasonR]

I think that the audio is 2 channel mp3. Also what will I need to change the FourCC tag to?

[Placio74]

... Also what will I need to change the FourCC tag to?
Not necessary.
However, after re-mux video can have FourCC mp4v (FFmpeg) or DIVX (Avidemux) or XVID (Yamb/MP4Box).
That's why i'm say before 'eventually'.

[LoRd_MuldeR]

Demux A/V used Yamb (MP4Box) > mux to AVI used [...] AVI-Mux GUI

That would be my preferred way :)