None of the designs I've loaded have more than approx. 20K stitches each so that shouldn't be a problem. Even with 10 or 12 designs on a 8GB USB or larger there is plenty of room. I'll check to see if there is a blank space between designs but I don't think there is. I agree with Cari-in-oly that it my Brother will read designs in a folder. I found it by accident too. I just don't remember what I did.