Japan’s National Diet Library (NDL) has made a significant decision regarding the preservation of video games, stating that Switch 2 Game-Key Cards will not be included in its collection. This decision highlights a crucial distinction in the digital age: what constitutes physical media and how we preserve our digital culture. Established in 1948, the NDL requires all domestic publishers to submit copies of new publications for preservation. While it has successfully archived over 9,600 video games since 2000, the NDL has determined that Game-Key Cards, which serve merely as download keys rather than containing game data themselves, do not meet their criteria for preservation.