If you were to stack all CDs, you would make a tower about 8.2368m tall but would be about 32033576469 CDs short of touching the moon... If you laid all CDs side by side in one line, you would make a chain about 823.68m long but still be about 333671927 CDs short of circling the Earth... The total mass of all CDs would be about 102.96kg yet you would require a further 459802 CDs to outweigh an average African elephant...