If you were to stack all CDs, you would make a tower about 8.1552m tall but would be about 32033576537 CDs short of touching the moon... If you laid all CDs side by side in one line, you would make a chain about 815.52m long but still be about 333671995 CDs short of circling the Earth... The total mass of all CDs would be about 101.94kg yet you would require a further 459870 CDs to outweigh an average African elephant...