not sure on Apple/Iphone stuff TBH as I dont know what the compression of the music file is if any. I wanted FLAC cos I know its lossless & didnt want MP3 cos I dont want to put quantity over quality but I have to say I dont have CD's anymore. Chucked the lot years ago thinking mp3's were the way forward (quantity over quality) but now I have decent quality sound sytems in the house the MP3's just dont cut it for me especially as storage is so cheap.
After 10 years the cambridge speakers from my 1st desktop still impress me & that is what I use to judge anything else I listen to. Dont get me wrong I'm no Audiophile but like to think I have a good ear & can pick out whats going on in a track.
Playing the FLAC in the car has been a bit like when someone on a mixing desk fades in an instuments that seemed missing in an MP3's.
I think my lads impressed too.....