Hi, MPlayer does not seem to currently support playing back streamdumps of HQ Youtube videos that have an AAC audio stream. Is this known not to work, or any work in progress to get it fixed? $ wget 'http://www.youtube.com/get_video?video_id=hKoB0MHVBvM&t=OEgsToPDskJn59G6lF0zOYE2drfnwOXj&el=detailpage&ps=&fmt=18' -O mentos.flv $ mplayer mentos.flv ... Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding) FAAD: compressed input bitrate missing, assuming 128kbit/s! AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400) Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio) decoder) ... $ mplayer -dumpaudio mentos.flv ... Core dumped ;) $ mplayer stream.dump MPlayer dev-SVN-r27637-4.3-openSUSE Linux 11.0 (i686)-Packman (C) 2000-2008 MPlayer Team CPU: AMD Athlon(tm) XP 2000+ (Family: 6, Model: 8, Stepping: 0) CPUflags: MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0 Compiled with runtime CPU detection. Can't open joystick device /dev/input/js0: No such file or directory Can't init input joystick mplayer: could not connect to socket mplayer: No such file or directory Failed to open LIRC support. You will not be able to use your remote control. Playing stream.dump. MPEG-PES file format detected. MPEG: No audio stream found -> no sound. MPEG: FATAL: EOF while searching for sequence header. Video: Cannot read properties. ========================================================================== Opening audio decoder: [mp3lib] MPEG layer-2, layer-3 ADecoder init failed :( ADecoder init failed :( Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders Unknown/missing audio format -> no sound ADecoder init failed :( Requested audio codec family [mad] (afm=libmad) not available. Enable it at compilation. Opening audio decoder: [hwmpa] MPEG audio pass-through (fake decoder) Cannot sync MPA frame: 0 ADecoder init failed :( ADecoder init failed :( Cannot find codec for audio format 0x50. Read DOCS/HTML/en/codecs.html! Audio: no sound Video: no video Exiting... (End of file) Sometimes (i.e. other videos), LAVC also takes control of the file: Playing stream.dump. libavformat file format detected. LAVF_header: av_open_input_stream() failed Exiting... (End of file)