How to restore original codec after changing fourcc codec

[Talayero]

Hi,

I had a avi Divx4 (Open Divx), according to Gsopt.

I used the programa AVI FourCC Changer 1.00 to change the codec and see if I could work with it better, because I had problems to demux the audio ac3 that didn't play well.

The problem now is I can't go back and have the avi as it was originally.
I have this film in two halves. The first one is unchanged (Divx4 Open Divx) and I can see the image, the second one was changed with AVI FourCC Changer and I can't see it any more. This program has the options Fourcc description code and user code but I can't choose the right one as to let the avi with the Divx4 (Open Divx) as it was at the beginning..

Thanks in advance.

[Talayero]

Well,

I found a solution. I downloaded a different program, AVI 4CC Editor, and this one let me choose the right codec.

Now I still can't demux the audio ac3 from this avi Divx4, nor can I reencode the avi outputting an audio that works.

[jagabo]

All you had to do was look at the unmodified file to see what the two codes are, then restore the modified file to those same codes.