hai provato con mpg123? essendo un programmindo da "command line", può darsi che, pur non funzionando, il suo output per lo meno serva a capirci qualcosa...
per esempio.... [EMAIL PROTECTED]:~$ mpg123 -v zapatero.mp3 High Performance MPEG 1.0/2.0/2.5 Audio Player for Layer 1, 2 and 3. Version 0.59r (1999/Jun/15). Written and copyrights by Michael Hipp. Uses code from various people. See 'README' for more! THIS SOFTWARE COMES WITH ABSOLUTELY NO WARRANTY! USE AT YOUR OWN RISK! Title : Artist: Album : Year : Comment: Genre : Unknown Playing MPEG stream from zapatero.mp3 ... MPEG 1.0, Layer: III, Freq: 44100, mode: Stereo, modext: 0, BPF : 522 Channels: 2, copyright: Yes, original: Yes, CRC: Yes, emphasis: 0. Bitrate: 160 Kbits/s, Extension value: 1 Audio: 1:1 conversion, rate: 44100, encoding: signed 16 bit, channels: 2 ciao, Mario -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]

