This rack holds Blu-rays, DVDs, Xbox 360, Wii, and PlayStation 3 games very well. I designed it to be "modular" so that when my game collection gets bigger I can just print another tray and link the two together creating a tray "train". I am still working on the linking bits but so far it has been working really well. I considered cases placed in portrait or landscape orientation so that either work and are stable. My home entertainment center has short shelves so landscape works great for me. I did notice that when cases are inserted with a portrait orientation some cases with lose plastic covers will snag because my tolerances are probably .2-.4 mm on the tight side. Your mileage may vary. Holds 8 DVDs Rounded slats to make inserting DVDs easier Print Time on Da Vinci at "normal" speeds = 1 hour 50 min Raft = No Supports = No ABS Consumed = 10m Project Size = 150 mm X 80 mm 25 mm Maximum Capacity for 1 tray is 8 DVDs Maximum Capacity for N number of trays Not linked = 8N Maximum Capacity for N number of trays with dvd-link is (8N+(N-1)) 1 Tray not linked = 8 DVDs 2 Trays linked = 17 DVDs 2 Trays not linked = 16 DVDs 3 Trays linked = 26 DVDs 3 Trays not linked = 24 DVDs liking trays not only keeps the trays together and organized, but it also increases the maximum capacity of the entire collection.I used FreeCAD, set of digital calipers and my imagination to get this idea off the ground. My Da Vinci 1.0 3D printer turned my STL into a reality. Print DVD Rack file to create a single 8 DVD tray. If you want to print multiple trays and link them together, print out the dvd joiner file and link multiple trays together. The joiner adds the space for an extra DVD between the 2 trays. Maximum Capacity for 1 tray is 8 DVDs Maximum Capacity for N number of trays Not linked = 8N Maximum Capacity for N number of trays with dvd-link is (8N+(N-1)) 1 Tray not linked = 8 DVDs 2 Trays linked = 17 DVDs 2 Trays not linked = 16 DVDs 3 Trays linked = 26 DVDs 3 Trays not linked = 24 DVDs liking trays not only keeps the trays together and organized, but it also increases the maximum capacity of the entire collection.