converting mp4 to avi

[IcExAlchemY]

is there a program to do it and can you tell me how to use it?

[redwudz]

What kind of MP4 and what kind of AVI? They both come in many flavors. I would put the MP4 into AVIcodec or Gspot and give us the results. As to AVI there are, XVID, DIVX, Huffy, etc. Also a lot of types.

Generally, try to open the file in Virtualdub or VDmod. If you can open it, you can usually use VD to convert to other types of AVI.

[wulf109]

MP4UI can demux an MP4 into avi and aac streams. AVIMUX can multiplex it into a DIVX but you need to convert the aac audio to mp3.

[IcExAlchemY]

this is what i got from avicodec
File : 192 MB (0.0 B), duration: 0:00:00, type: DSH, 1 audio stream(s), quality: 72 %

this is from gspot, not sure if i did it right
AVI File Details
========================================
Name.........: [TW] - Naruto Episode 1 .mp4
Filesize.....: 192 MB (or 197,294 KB or 202,029,877 bytes)
Runtime......: n.a.
Video Codec..: n.a.
Video Bitrate: n.a.
Audio Codec..: n.a.
Audio Bitrate: n.a.
Frame Size...: n.a.

[celtic_druid]

Guess it depends if it is ASP or h.264/AVC. MP4UI can't handle AVC and in fact I don't think that it is currently possible to remux AVC from mp4 to avi.

AVIMuxGUI supports aac in avi just fine by the way.

mencoder should be able to remux the video (not AVC) to an avi whilst re-encoding the audio to mp3 if that is what you want to do.

Should also point out that it is quite possible that the mp4 uses mp3 audio anyway. Could also be say vorbis as a private stream.