Slide 4 of 7. This is the initial display of an illustrative digital object that reproduces a 3-disc (6 sides) long-playing album with a 28-page booklet. The “structural map” metadata from the METS document is presented as a tree in the left frame. Thumbnails of all images included with this item are displayed in the right frame; scrolling down would reveal the remaining thumbnails of booklet pages.