If you were to stack all CDs, you would make a tower about 8.3508m tall but would be about 32033576374 CDs short of touching the moon... If you laid all CDs side by side in one line, you would make a chain about 835.08m long but still be about 333671832 CDs short of circling the Earth... The total mass of all CDs would be about 104.385kg yet you would require a further 459707 CDs to outweigh an average African elephant...