Hi again, Using this works just fine with FFmpeg 0.9 or later: -map 0:v:0 -map 0:a I'm trying to get the first video stream and all audio streams. But using FFmpeg 0.8.6 produces this: Codec type mismatch for mapping #0.0 -> #0.1 Has the mapping behavior changed in version 0.9? Just curious so I can understand this better thanks! rc