It's just me,,,,,but i feel as though playback from the WD Purp drives on my systems (2) is better than the WD Blues,,,but I have only a sample of 2 machines and 4 drives....My 2 WD white label 5TB seem up the task,,,,The 2 - 6TB blues seem stammery, and the 2 WD Purps 8TB fixed the stammery stuff.....