That makes sense. I agree that RFID is probably the way to go. What I was thinking of was closer to what you are describing though, or to a supermarket style in

That makes sense. I agree that RFID is probably the way to go. What I was thinking of was closer to what you are describing though, or to a supermarket style in-counter barcode reader. I don't know if there's a minimum barcode-to-reader distance, but I suspect you could hack something up by building a box around one of these types* of readers. Another downside to the barcode approach is also that it requires correct alignment. Maybe you can get greater convenience from RFID. On the other hand, the RFID approach means you don't have to modify the boxes at all. Because the code should hold some semantic meaning, you could maybe even set it up to download the requested movie on demand, so that you don't have to build your own database... Regardless, it's a fun idea! * https://www.amazon.com/Barcode-Omnidirectional-Hands-Free-Supermarket-Adjustable/dp/B01MSJPPJU/ref=sr_1_85?s=office-electronics&ie=UTF8&qid=1514007050&sr=1-85&keywords=barcode+scanner https://www.amazon.com/Barcode-Omnidirectional-Hands-Free-Su...