I don't like the sound of that, I hope there is a way to disable the artwork creation feature. If not then I guess I will have to live with it as the space taken up is kind of minimal compared to the overall storage space 2TB or 4TB.Not sure it's pretty basic. All I know is it was slowing down, if I was mass tagging, converting etc. I used Winscp to SSH into the nas and delete all hidden \@eardir that was within each folder and reclaimed back 20-30GB