I tried to render blu--ray profile (ffmpeg-m2ts type) and while video worked - audio was giving me troubles .. I changed bluray ac3 at very beginning of /usr/share/cin/ffmpeg/audio/bluray.m2ts to mpegts ac3 , now sounds apparently works (no render error, mplayer show audio stream with 192 Kbit/s bitrate) but is this right fix, or bluray keyword used internally for cin for Blu-Ray profiles? If this is right fix - there are some video opts files where format defined as "bluray libx264" at the top of the file: bluray.m2ts bluray_dv_ntsc.m2ts bluray_dv_pal.m2ts bluray_lo.m2ts visually_lossless.m2ts I think I made those files work as render choice, but BD creation not tested yet .... may be bluray.m2ts from audio folder should be renamed bluray_ac3.m2ts ?