The disc capacity has his importance for the storage of the information. However, it is not all. If the replicated product has representative functions, too, think about the most appropriate shape.
To take the right decision which media and shape will fit mostly to the purpose you have to consider the discs quantity, too. If the quantity is small (50-250 pcs) you need CD-R or DVD-R. When the
quantity is over 500 pcs, the reasonable media is CD-ROM and DVD-ROM.
The disc capacity has his importance for the storage of the information.