> > Nope, only some of the additions are marked by "HDMV". > E.g. TrueHD tracks have an "AC-3" registration descriptor > and no "HDMV". So when using your logic ffmpeg would > not be able to handle Blu-Ray TrueHD tracks properly. Right, so my original patch would not find those. Do you happen to know what types are marked by HDMV?