actualy rock/hevymatal is the type that i noteced the poor quality in first ....cuz the guitar sounds and the drums sounded all shlerrred together even at 320 ....but soft rock ie piano man by billy jole sounded pretty good at 112 kbps .....but it still wasent as good as the cd .....a virus recentley destroyed my music library so now im re building it with wavs.