Since I got my new Seagate NAS I managed after a few failed attempts to get my entire library moved onto it from my C: drive and have all the tags and playlists intact. I had to do this through JRiver and not windows file manager in order to keep the playlists. JRiver did something unexpected. It dumped all the files into one folder "music". It seems to work fine, it doesn't seem to care if each group and album isn't under the 2 level file structure. My question is, as I add music, hopefully a LOT of music, will having all the files in just one folder slow anything down? I know JRiver uses tags in order to locate music, and when I look for music within JRiver it shows all the albums, tracks, artists etc just like before. It is only when I look at the files from within windows file manager does it look like a disaster.