DJing with MP3s! in General Psytrance Posted June 27, 2007 It's really about how good one has the hearing. I can hear the difference between mp3s and wavs, but many people don't. It reallly all comes down to what condition your ears are in. Btw. I don't know why, but I can hear better with my left ear. Like some high frequencies I can't hear on my right ear, and on the left I can. Is that normal? Yes it is normal!