Hello, How to get multiple cards working with ffmpeg under windows and vfwcap? I tried : ffmpeg.exe -r 29.97 -f vfwcap -i 0 -y test.avi and it worked for default card... but how can I use 2 cards at the same time? -i 1/2/3 does not work... is there any workaround? Thanks for help... KZ