>in particular the parts where it says which instructions sets it detects and >uses. But I suspect it should be fixed in SVN r30971. Yes it is now fixed: apostolo at nadya>> ./mplayer -v ~apostolo/Azureus\ Downloads/Until\ June\ -\ Sleepless.mp3 MPlayer SVN-r30971-4.3.2 (C) 2000-2010 MPlayer Team CPU vendor name: AuthenticAMD max cpuid level: 1 CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 5200+ (Family: 15, Model: 67, Stepping: 2) extended cpuid-level: 24 extended cache-info: 67141952 Detected cache-line size is 64 bytes CPUflags: MMX: 1 MMX2: 1 3DNow: 1 3DNowExt: 1 SSE: 1 SSE2: 1 SSSE3: 0 Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowExt SSE SSE2 CMOV . . . . . . . ========================================================================== Opening audio decoder: [mp3lib] MPEG layer-2, layer-3 dec_audio: Allocating 4608 + 65536 = 70144 bytes for output buffer. mp3lib: using SSE optimized decore! <--------------------------------------------------------------------------------------------- MP3lib: init layer2&3 finished, tables done MPEG 1.0, Layer III, 44100 Hz 320 kbit Stereo, BPF: 1045 Channels: 2, copyright: No, original: No, CRC: No, emphasis: 0 AUDIO: 44100 Hz, 2 ch, s16le, 320.0 kbit/22.68% (ratio: 40000->176400) Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3) ========================================================================== Thank you ! Apostolos Syropoulos