And for example, if I have a mp3 320kbps CBR, and convert it to mp3 VBR 0, if the mp3 in CBR was in 320kbps, but in fact was of less quality (lets say it was put at 320kbps but before that was in 160kbps CBR). The VBR 0 algorithm will take that mp3 and the result is according to the real quality, so it will show the kbps info at 166 kbps?
My question is, if I have 2 songs that doesn't differ much in "complexity", at 320kbps CBR, and convert to VBR 0. Why one of those two take down to 166kbps while the other one takes to 230kbps? In the file info.