public function sampleData( event: SampleDataEvent = null ): void
        {

                trace( "asffdfdfdfdfdkfdkfdkfdfkdfkdfdkfdk");
            //-- REUSE INSTEAD OF RECREATION
            _target.position = 0;

            //-- SHORTCUT
            var data: ByteArray = event.data;

            var scaledBlockSize: Number = BLOCK_SIZE * _rate;
            var positionInt: int = _position;
            var alpha: Number = _position - positionInt;

            var positionTargetNum: Number = alpha;
            var positionTargetInt: int = -1;

            //-- COMPUTE NUMBER OF SAMPLES NEED TO PROCESS BLOCK (+2 FOR INTERPOLATION)
            var need: int = Math.ceil( scaledBlockSize ) + 2;

            //-- EXTRACT SAMPLES
            var read: int = _mp3.extract( _target, need, positionInt );

            if ( read == 0 )
            {
                if ( isLooped )
                {
                    _position = 0;
                    sampleData( event );
                }
                else
                {

                    sound.removeEventListener(SampleDataEvent.SAMPLE_DATA, sampleData );
                    //channel.removeEventListener(Event.SOUND_COMPLETE, onSoundComplete);
                    isFinished = true;
                }

            }

            var n: int = read == need ? BLOCK_SIZE : read / _rate;

            var l0: Number;
            var r0: Number;
            var l1: Number;
            var r1: Number;

            for( var i: int = 0 ; i < n ; ++i )
            {
                //-- AVOID READING EQUAL SAMPLES, IF RATE < 1.0
                if( int( positionTargetNum ) != positionTargetInt )
                {
                    positionTargetInt = positionTargetNum;

                    //-- SET TARGET READ POSITION
                    _target.position = positionTargetInt << 3;

                    //-- READ TWO STEREO SAMPLES FOR LINEAR INTERPOLATION
                    l0 =  readFloat();
                    r0 =  readFloat();

                    l1 =  readFloat();
                    r1 =  readFloat();
                }

                //-- WRITE INTERPOLATED AMPLITUDES INTO STREAM
                data.writeFloat( l0 + alpha * ( l1 - l0 ) );
                data.writeFloat( r0 + alpha * ( r1 - r0 ) );

                //-- INCREASE TARGET POSITION
                positionTargetNum += _rate;

                //-- INCREASE FRACTION AND CLAMP BETWEEN 0 AND 1
                alpha += _rate;
                while( alpha >= 1.0 ) --alpha;
            }

            //-- FILL REST OF STREAM WITH ZEROs
            if( i < BLOCK_SIZE )
            {
                while( i < BLOCK_SIZE )
                {
                    data.writeFloat( 0.0 );
                    data.writeFloat( 0.0 );

                    ++i;
                }
            }

            //-- INCREASE SOUND POSITION
            _position += scaledBlockSize;


        }