Hi, I want to know of a batch MP3 converter that can do the following during the conversion... 1. Convert bitrate 2. Convert from 44hz to 22hz 3. Convert to Mono 4. Add a normalization filter I want my MP3s in 32kbps, 22hz, mono and normalized because if they are not normalized then there is crackle and popping sounds. Is there a program that can do all of this for me? Thanks!