New standard recording format

Thanks to all the suggestion sent us by the many user, we think we have identified the best compromise beetwen the need for speed (with low file sizes) and the quality of the audio for the radio recording.

From now on all the radio recordings done by DriveCast will be mp3 at 128 Kbit/sec, joint stereo sampled at 44.1 Khz. Up to now, recording in mono, we were honestly just optimized for the talk radio, and we hope this will make happy the many of you who need to record other kinds of stream.