hello people im looking into getting a cdj and would like to know if there is a big difference in 256kbps or 320kbps... i use i-tunes to get my dnb but they are all 256kbps size!! is it better to use 320kbps or is there nothing in it?? i use RP8 G2 - Rockit 8" Active Studio Monitors. any help would be awesome... many thanks people