If I was you I will keep system and Vienna samples of different ssd
Sorry, I wasn't clear. They are on separate drives, with SATA III interfaces. But it's just become clear that EVO840 drives have some issues where older files have massively longer retrieval times than new files. So samples that have been stored a while may not stream very well. There is a firmware update coming, which should fix it, and hopefully fix my glitching issues.