Rob said:If you're talking about digital formats (CD vs mp3), it all depends on the sample rate. If you're talking about vinyl vs mp3, any person can tell the difference, it's night and day.
I got into vinyl years ago, and I remember my first listen of a new pressing of Bon Jovi's Slippery When Wet (should I be embarrassed by that?). I was blown away at how "live" it sounded.
Amazing.