Everyone has their own opinions on compression and that's fine. After comparing MP3 and AAC directly I decided that AAC retains more of the ambiance of the music on certain specially picked songs and decided to switch. 256k AAC was indistinguishable from FLAC for me and I bumped it to 300k for peace of mind. This is nothing to fight over- only personal preference. Of course, CD audio itself is quite limited when compared to vinyl.