If you were to stack all CDs, you would make a tower about 7.7388m tall but would be about 32033576884 CDs short of touching the moon... If you laid all CDs side by side in one line, you would make a chain about 773.88m long but still be about 333672342 CDs short of circling the Earth... The total mass of all CDs would be about 96.735kg yet you would require a further 460217 CDs to outweigh an average African elephant...