If you were to stack all CDs, you would make a tower about 8.2512m tall but would be about 32033576457 CDs short of touching the moon... If you laid all CDs side by side in one line, you would make a chain about 825.12m long but still be about 333671915 CDs short of circling the Earth... The total mass of all CDs would be about 103.14kg yet you would require a further 459790 CDs to outweigh an average African elephant...