Any program that batch converts ogm to avi. I've seen a tut that can do 1 at a time and it works well for me but I have 27 files I need converted.
mencoder. Something like: for %%f in (*.ogm) DO (mencoder.exe -oac mp3lame -ovc copy "%%f" -o "%%~nf.avi") If the ogm's use vorbis audio. Result avi with original video and mp3 audio. Use -aid or -alang to specify which audio stream if there is more than one. Use -oac copy if the audio is compatible. -lameencopts for lame settings.