Which innovative packaging concept did Radiohead use for their 2007 album 'In Rainbows' that revolutionized physical media sales in the streaming era?

The music industry has undergone dramatic transformations in how physical music products are packaged and presented to consumers. From vinyl's elaborate gatefold sleeves to cassette J-cards to CD jewel cases and beyond, packaging innovations have shaped not only how we consume music but also how artists express their visual identity. Test your knowledge of these packaging innovations that have defined music retail history!

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The 'discbox' - a premium package with vinyl, CD, artwork and booklets in a hardbound case, offered alongside a pay-what-you-want digital download
A biodegradable seed-embedded CD case that could be planted to grow wildflowers representing songs on the album
A blank CD-R with instructions for fans to burn their own copy, challenging traditional ownership concepts
A limited edition USB drive shaped like Thom Yorke's head containing lossless audio files and interactive visuals