I seem to have a slight problem recording AVIs with Generator. MJPEG doesn't seem to work at all. I only get about 0.2 seconds of video (this might be mplayer bug).
When I use RGB it seems otherwise ok but the video is upside down and mirrored.
How can I repair this?

I'm using pre-compiled Generator GTK/SDL.

In the RGB case, you could try to reverse the loop in main/avi.c:

In avi_video_raw() change

for (line = 0; line < avi->info.height; line++) {

to

for (line = avi->info.height; --line >= 0; /* NOTHING */) {

Of course, you'd have to compile Generator yourself for this.