Our big band is in the process of upgrading our folders. We bought the biggest ones we could find (Deer River Grand Concert), but they just don't have enough room in them. We thinned out our library from over 400 charts to about 340, but already the new folders are stuffed to the max. Does anyone know of a good source for some high capacity folders? I remember seeing the Airmen of Note years ago, and they had some slick folders that looked more like a folding leatherette box with a snap closure on the side. It was about 3 inches thick, and unfolded on the stand with pockets on the left and right. I suspect that they had them custom made.