hey, i've tried doing what you said you did, but i seem to be having problems with the ffmpegx app. after demuxing the tools i cannot seems to mux them back into an avi.
this is what i do in ffmpegx to try to mux them:
-Open ffmpegX
-select Tools
-under Tools, select video and audio 1
-under "Select multiplexing options"
Mux as: AVI
-Mux
what is interesting is that the muxing takes a split of a second before i hear a distinct "ding" telling that the process has been completed, and the .avi file is nowhere to be found afterward.
what did you do in ffmpegX to mux your demuxed .ogm into an .avi???