biggrin.gif I need a codec/player/plugin which can play the GSM 06.10 audio file (pls take note GSM 06.10 is different with the MS GSM 06.10 ) and this codec/player/plugin need to hav the speed settings like Media Player Classic which can speed up the tempo/speed. I try Quick Time and Winamp b4, both of the player can play GSM 06.10 but cant speed up the tempo/speed of it, i also try K Lite Code and Foobar but both of them fail to play the GSM 06.10 audio. tongue.gif Hopefully the expert in codec can help sad.gif sad.gif