Which innovative eco-friendly album packaging, introduced in 2006, eliminated plastic jewel cases and reduced CD packaging carbon footprint by over 80%?

The music industry has evolved significantly in how physical music products are packaged. From plastic jewel cases to innovative eco-friendly designs, packaging has become an important aspect of artist expression and environmental responsibility. This poll tests your knowledge about a groundbreaking sustainable packaging innovation that changed how physical music products are delivered to consumers. Do you know which pioneering solution transformed the industry's approach to sustainability?

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Radiohead's 'In Rainbows' discbox made from recycled tea cups
EMI's 'Carbon Neutral' cardboard sleeves
The Digipak paper-based packaging system
Coldplay's 'X&Y' eco-sleeve made from post-consumer waste