Hi Friends, Which is the best software to update & upgrade existing MP3 (96kbps) quality files i.e. 1. converting to 160 kbps, stereo 2. Normalising the file so that the sound quality is better 3. appling & adding gain (db) 4. converting to Dolby Digital format etc. I tried MMJB 7.5, MP3 Gain but was not satisfied. Also can anyone explain the normalizing concept in detail.