I'm trying to redo my whole itunes library in flac (lossless). I am ripping some cds, and converting a lot of flac files I have into apple lossless. I noticed that the kbps for cd rips is a lot higher (around 1100) where conversions from flac to apple lossless are around 750 kbps. Is this normal? Does the kbps just variate between songs/cds? Does it make a difference? Thanks!