Which innovative packaging design feature was first introduced by Columbia Records in the 1940s that revolutionized how consumers stored and protected their vinyl records?

The music industry has seen dramatic shifts in how physical music products are packaged and presented to consumers over the decades. From vinyl sleeves to cassette cases, jewel boxes to digital downloads, packaging design has played a crucial role in both protecting music media and marketing artists. This trivia question explores an interesting fact about packaging innovation that changed how consumers interacted with physical music products.

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The gatefold album cover that opened like a book
The paperboard jacket with inner protective sleeve
The plastic outer sleeve with resealable flap
The die-cut window cover showing the record label