hi . Running windows XP32pro and progdvb 6.82.1 professional every thing is ok with audio codecs when watching or recording SD (not H.262) channels. for channels with AAC audio and H.264 video , progdvb plays audio with this codec "LAV audio decoder" or other codecs for example ffdshow video decoder or .. . problem starts when : I want to record channels which have AAC as audio , then the recorded file has no audio stream at all but the video is ok . I have tried everything that you may think of :changing progdvb version , testing output file with most players (all of them said no audio stream) , changing demultiplexer in progdvb setting , changing output format for recorded file (now is ts) ..... can anybody help me ?