We've all had that moment. You're reviewing your collection, maybe cross-referencing your database with the games you just pulled from deep storage. Maybe you're taking inventory of games, you're packing up to store in the attic, or maybe you're looking for one game in particular you have an urge to play for the first time in years. All of a sudden, you discover that a game your collection list (and your own memory) says you own isn't where it's supposed to be. Perhaps it's the one you've been wanting to play, or maybe it's the one that should be sitting right next to the one you're looking for, but isn't. To any serious collector, this is a heart-stopping moment of confusion, panic, possibly even rage.